Perhaps you should try some spelling variations:
conjunctive government » comparative government, confucian government
filing requirements » filing requirement, defining requirements, holding requirements
requirements case » requirements based, requirements core, requirements race
structures some » structures formed, structures story, structures from
case history » trade history, state history, life history

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( conjunctive government structures some ) or ( filing requirements case history ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( conjunctive government structures some ) OR ( filing requirements case history )).
• Adding a wildcard symbol may retrieve word variants: (( conjunctive government structures some ) or ( filing requirements case history ))*.