Perhaps you should try some spelling variations:
technologies trade » technology trade, technologies case, technologies table
oral communication » personal communication
trade information » price information, private information, trade integration
der developpement » de developpement, des developpements, leur developpement
information back » information bank, information pack, information banks
developpement en » developpement et, developpement des, developpement de
communication 3 » communication _, communication a
3 der » _ der, 2 der

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

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