Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
technologies de » technologies _, technologies 4, technologies 2
de information » die information, de informacion, e information
development l » development li, development 1, development law
cost sector » cost vector, port sector, forest sector
l afrique » en afrique
gap does » gap die, lcp does

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

• Adding a wildcard symbol may retrieve word variants: technologies de information gap does risk communication cost sector development l afrique.*.