Perhaps you should try some spelling variations:
communication model » communication media
trade development » software development
information need » information needs, information needed, information speed
bank afrique » en afrique, bank africa, bank african
model trade » modern trade, model traem, model tree
need one » need more, need only
one risk » ante risk, line risk, more risk

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information need one risk communication model trade development bank afrique.*.