Perhaps you should try some spelling variations:
oral communication » personal communication
die developpement » de developpement, le developpement, du developpement
eines irrigation » minor irrigation, petite irrigation, saline irrigation
developpement en » developpement et, developpement des, developpement de
typologie eines » typologie cices, typologie einiger, typologie des
communication 3 » communication _, communication a
irrigation 4 » irrigation _, irrigation 5, irrigation use
hr oral » who oral, why oral
3 die » 2 die, _ die
4 hr » 4 uhr, 4 hrg, 4 hur

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

• Adding a wildcard symbol may retrieve word variants: typologie eines irrigation 4 hr oral communication 3 die developpement en afrique.*.