BBIH Help - Table of contents		2.4.3 Use AND, OR, NOT as Boolean operators
1. Main menu 2. Search screen: how to search ? 2.1 Simple search 2.2 Advanced search 2.3 Words and phrases 2.4 Wild cards and Boolean searches 2.5 Auto-complete 2.6 Browse list 2.7 Auto record count 2.8 Help on individual fields 2.8.1 Search anywhere 2.8.2 Author 2.8.3 Title contains 2.8.4 Journal or series 2.8.5 Year of publication 2.8.6 All index terms 2.8.7 Subject tree 2.8.8 Place name tree 2.8.9 Person as subject 2.8.10 Period covered 3. Result overview 4. Record view 5. Links to other databases 5.1 Link to ODNB, NRA and Who was Who 5.2 OpenURL-link 5.3 Find in a Library link 5.4 Google Books link 6. Export 6.1 .txt – EndNote 6.2 .xml - Microsoft Office Word 6.3 .txt - RefWorks 6.4 By Using Zotero 7. Change interface language 8. Search history 9. Coverage 10. Video tutorials 11. Help for RHS Bibliography and LPOL users 12. Logout		When you use AND in any field except Period covered, Year of publication, Subject tree and Place name tree it will be treated as a Boolean operator linking the words or phrases on either side of it. For example, searching for Crisis AND continuity in the Title contains field will find all records whose titles contain both the word 'crisis' and the word 'continuity', irrespective of the order in which they occur ('AND' has been shown in capitals here for clarity, but you do not have to type it this way). This has the same effect as typing crisis continuity because the 'AND' operator is assumed to be present between words by default. Different rules apply to Subject tree and Place name tree: learn more about subject tree or learn more about place name tree. You can also use OR to connect words when you want to find records that contain either word, e.g. Title contains crisis OR continuity will find records whose titles contain either the word 'crisis' or the word 'continuity'. Again, different rules apply to Subject tree and Place name tree: learn more about subject tree or learn more about place name tree. Use NOT to connect words when you want to find records that contain the first word or phrase, but not the second. To find a phrase that contains any of the words 'AND', 'OR' or 'NOT', place it in double inverted commas, e.g. "Crisis and continuity". You can mix 'AND', 'OR' and 'NOT' in one search, e.g. Arts AND Collecting OR Musems finds all records that contain both 'Arts' and 'Collecting' along with all records that contain 'Museums'. When combining 'AND' with 'OR', you may need to use brackets to control how your search is carried out. For example, to obtain all records that contain 'Transport' with either 'Gloucestershire' or 'Wiltshire', use brackets around the terms to be combined with 'OR': Transport AND (Gloucestershire OR Wiltshire) This ensures that the 'OR' operator is evaluated first. If brackets are not used, a search for Transport AND Gloucestershire OR Wiltshire will finds all records that contain both 'Transport' and 'Gloucestershire' along with all records that contain 'Wiltshire'. On the Advanced search screen you can also select different Boolean operators between fields (learn more: 2.2).