Perhaps you should try some spelling variations:
developpement durable » developpement de
leur developpement » le developpement, deux developpements, de developpement
trade information » price information, private information, trade integration
technology trade » technology trends, technology transfer, technology transfers
information 1.2 » information 1.5.2, information 2
de mass » de masse, de mais, de masa
1.2 de » 1.2 die, 1.2 der, 1.2 des

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 mass communication a leur developpement durable afrique.*.