Perhaps you should try some spelling variations:
oral communication » personal communication
communication et » communication 3, communication 1, communication 2
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
typologien does » typologie des, typologien der, typologie der
does variations » does variation, les variations, cost variations

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

• Adding a wildcard symbol may retrieve word variants: typologien does variations _ fires oral communication et de developpement en afrique.*.