Perhaps you should try some spelling variations:
technologies trade » technology trade, technologies case, technologies table
oral communication » personal communication
trade information » price information, private information, trade integration
information need » information needs, information needed, information speed
de development » e development, ce development, de developpement
a afrique » l afrique, en afrique
costs de » costs _, costs 4, costs a
need de » need le, need fide, need one
de oral » de otras, new oral

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

• Adding a wildcard symbol may retrieve word variants: technologies trade information need de oral communication costs de development a afrique.*.