Perhaps you should try some spelling variations:
cooperation history » corporation history, federation history
colonization failed » colonization still, organizations failed
nets communication » lea's communication, mass communication, c's communication
communication iraq » communication iran, communication israel, communication italy
local cooperation » global cooperation, social cooperation, local conservation
_ colonization » _ decolonization, decolonization _

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((( nets communication iraq ) or ( _ colonization failed ))) or ( local cooperation history ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( nets communication iraq ) OR ( _ colonization failed ))) OR ( local cooperation history )).
• Adding a wildcard symbol may retrieve word variants: (((( nets communication iraq ) or ( _ colonization failed ))) or ( local cooperation history ))*.