Perhaps you should try some spelling variations:
comparative macroeconomic » comparative economic, comprehensive macroeconomic, alternative macroeconomic
macroeconomic studies » microeconomic studies, macroeconomic series, macroeconomic sources
comparative economics » comparative economic, comparative genomics
comparative genomic » comparative genomics
frank comparative » france comparative, rana comparative, tank comparative
world tank » world tasks, world frank, world trans
world task » world tasks, worlds task, world mask
wild frank » wilde frank, wild franz, world frank

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((( the ((world tank) OR (world task)) comparative macroeconomic studies ) OR ( the wild frank comparative macroeconomic studies ))) OR ( the world bank ((comparative economics) OR (comparative genomic)) studies )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( the ((world tank) OR (world task)) comparative macroeconomic studies ) or ( the wild frank comparative macroeconomic studies ))) or ( the world bank ((comparative economics) or (comparative genomic)) studies ))".
• Adding a wildcard symbol may retrieve word variants: (((( the ((world tank) OR (world task)) comparative macroeconomic studies ) or ( the wild frank comparative macroeconomic studies ))) or ( the world bank ((comparative economics) or (comparative genomic)) studies ))*.