Perhaps you should try some spelling variations:
u.s communications » 3.1 communications, les communications, nps communications
trade information » price information, private information, trade integration
due developpement » de developpement, du developpement, le developpement
technology trade » technology trends, technology transfer, technology transfers
communications a » communications _, communications law, communications media
developpement en » developpement et, developpement des, developpement de
information 1.2 » information 1.5.2, information 2
1.2 de » 1.2 die, 1.2 der, 1.2 des
de u.s » der u.s, do u.s
a due » a die, _ due, 1 due

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

• Adding a wildcard symbol may retrieve word variants: technology trade information 1.2 de u.s communications a due developpement en afrique.*.