Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
trade development » software development
information gaps » information gap
technologies de » technologies _, technologies 4, technologies 2
de information » die information, de informacion, e information
costs trade » costly trade
a afrique » l afrique, en afrique
gaps do » games do, gaps how, gaps vom

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

• Adding a wildcard symbol may retrieve word variants: technologies de information gaps do _ communications costs trade development a afrique.*.