Perhaps you should try some spelling variations:
"mars decolonization notes" » "mars decolonization models", "mars decolonization case", "mars decolonization indonesia", "mars colonization notes", "war decolonization notes", "empire decolonization notes"
"_ cooperation history" » "_ corporation history", "_ federation history"
"pro communication iran" » "pro communication iraq", "pro communication ireland", "pro communication brands", "prone communication iran", "ngo communication iran", "proper communication iran"

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: (((("_ cooperation history") or ("mars decolonization notes"))) or ("pro communication iran"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("_ cooperation history") OR ("mars decolonization notes"))) OR ("pro communication iran")).
• Removing quotes may allow a broader search: (((( _ cooperation history ) or ( mars decolonization notes ))) or ( pro communication iran )).
• Adding a wildcard symbol may retrieve word variants: (((("_ cooperation history") or ("mars decolonization notes"))) or ("pro communication iran"))*.