Perhaps you should try some spelling variations:
oral communication » personal communication
die developpement » de developpement, le developpement, du developpement
cices irrigation » micro irrigation, scale irrigation, canal irrigation
developpement en » developpement et, developpement des, developpement de
typologie cices » typologie eines, typologie des
communication 3 » communication _, communication a
irrigation 6 » irrigation _, irrigation 4, irrigation 5
hr oral » who oral, why oral
3 die » 2 die, _ die
6 hr » 6 hrm, 6 ihr, _ hr

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

• Adding a wildcard symbol may retrieve word variants: typologie cices irrigation 6 hr oral communication 3 die developpement en afrique.*.