Perhaps you should try some spelling variations:
u.s communications » 3.1 communications, les communications, nps communications
das developpement » des developpements, de developpement, du developpement
technology trade » technology trends, technology transfer, technology transfers
communications a » communications _, communications law, communications media
developpement la » developpement de, developpement et, developpement du
la afrique » l afrique, la fabrique, en afrique
der u.s » over u.s, year u.s
a das » 1 das, 2 das, 3 das

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 integration _ der u.s communications a das developpement la afrique.~.
• Adding a wildcard symbol may retrieve word variants: technology trade integration _ der u.s communications a das developpement la afrique.*.