Perhaps you should try some spelling variations:
international efforts » international airports, international energy, international airport
ghana international » china international, what international, bank international
integration theory » integration through, information theory, integration report
support ghana » support grant, report ghana, support data

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( support ghana international efforts. ) or ( supply _ integration theory. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( support ghana international efforts. ) OR ( supply _ integration theory. )).
• Adding a wildcard symbol may retrieve word variants: (( support ghana international efforts. ) or ( supply _ integration theory. ))*.