Perhaps you should try some spelling variations:
personal communication » interpersonal communication
trade developpement » trade developement, trade development, de developpement
communication zur » communication _, communication a, communication 3
cost information » postal information, about information, asset information
developpement en » developpement et, developpement des, developpement de
technology cost » technology case, technology can, technology choice
de personal » der personal, des personal, de persona
zur trade » fur trade, your trade, der trade

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

• Adding a wildcard symbol may retrieve word variants: technology cost information _ de personal communication zur trade developpement en afrique.*.