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
mutans comparative » humans comparative, mutations comparative, simulans comparative
economics studies » economic studies, economics students, economics study
tank comparative » talk comparative, dark comparative, parks comparative
bank comparative » dark comparative, talk comparative, banking comparative
world frank » world france, old frank, world brand
wild frank » wilde frank, wild franz, auld 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 comparative) OR (mutans comparative)) macroeconomic studies ) OR ( the ((world frank) OR (wild frank)) comparative macroeconomic studies ))) OR ( the world bank comparative economics studies )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( the world ((tank comparative) or (mutans comparative)) macroeconomic studies ) or ( the ((world frank) OR (wild frank)) comparative macroeconomic studies ))) or ( the world bank comparative economics studies ))".
• Adding a wildcard symbol may retrieve word variants: (((( the world ((tank comparative) or (mutans comparative)) macroeconomic studies ) or ( the ((world frank) OR (wild frank)) comparative macroeconomic studies ))) or ( the world bank comparative economics studies ))*.