Perhaps you should try some spelling variations:
communication israel » communication issues, communication iran, telecommunication israel
africa colonization » arrival colonization, africa cooperation, africa organization
colonization israel » colonization still, colonization history, decolonization islam
communication iraq » communication iran, communication italy, communication ideas

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: (( africa colonization israel ) OR ( its ((communication israel) OR (communication iraq)) ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( africa colonization israel ) or ( its ((communication israel) OR (communication iraq)) ))~".
• Adding a wildcard symbol may retrieve word variants: (( africa colonization israel ) or ( its ((communication israel) OR (communication iraq)) ))*.