Perhaps you should try some spelling variations:
trade information » price information, private information, trade integration
technology trade » technology trends, technology transfer, technology transfers
information need » information needs, information needed, information speed
development case » development china
de mobile » die mobile, e mobile, does mobile
need de » need le, need fide, need one

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

• Performing a fuzzy search may retrieve terms with similar spellings: technology trade information need de mobile communication _ human development case afrique.~.
• Adding a wildcard symbol may retrieve word variants: technology trade information need de mobile communication _ human development case afrique.*.