Perhaps you should try some spelling variations:
communication cross » communication costs
oral communication » personal communication
urban development » human development
technology trade » technology trends, technology transfer, technology transfers
integration gaps » integration gives, integration goods, integration gulf
cross urban » across urban, crisis urban, cairo's urban
bank africa » bank's africa, can africa, banking africa
gaps 2 » gaps _, gaps 3, gaps 6
2 oral » _ oral, 4 oral

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

• Adding a wildcard symbol may retrieve word variants: technology trade integration gaps 2 oral communication cross urban development bank africa.*.