Perhaps you should try some spelling variations:
technologies trade » technology trade, technologies case, technologies table
oral communication » personal communication
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
communication 3 » communication _, communication a
der oral » der moral, der ort, der orte
3 der » _ der, 2 der
3 de » 3 die, 3 des, _ de

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

• Adding a wildcard symbol may retrieve word variants: technologies trade integration 3 der oral communication 3 de developpement en afrique.*.