Perhaps you should try some spelling variations:
oral communication » personal communication
integration roles » integration regimes, integration reforms, integration points
technology trade » technology trends, technology transfer, technology transfers
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
communication 1 » communication _, communication a, communication 3
roles one » roles some, roles de, does one
one oral » one moral, one rural, one oil
1 de » 1 die, 1 der, _ de

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

• Adding a wildcard symbol may retrieve word variants: technology trade integration roles one oral communication 1 de developpement en afrique.*.