Perhaps you should try some spelling variations:
"la cooperation studies" » "la cooperation series", "la cooperation sources", "la cooperation implies", "2 cooperation studies", "gulf cooperation studies", "area cooperation studies"
"pro communication iran" » "pro communication iraq", "pro communication ireland", "pro communication brands", "prone communication iran", "ngo communication iran", "proper communication iran"
"jews colonization work" » "its colonization work", "mars colonization work", "re colonization work", "jews colonization's mark", "jews colonization songs", "jews colonization _"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("la cooperation studies") or ("jews colonization work"))) or ("pro communication iran"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("la cooperation studies") OR ("jews colonization work"))) OR ("pro communication iran")).
• Removing quotes may allow a broader search: (((( la cooperation studies ) or ( jews colonization work ))) or ( pro communication iran )).
• Adding a wildcard symbol may retrieve word variants: (((("la cooperation studies") or ("jews colonization work"))) or ("pro communication iran"))*.