Perhaps you should try some spelling variations:
oral communication » personal communication
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
variations ment » variations west, variation test, variations des
les variations » its variations, 1er variations, ier variations
typologie les » typologie des, typologie der, typologie et
ment water » melt water, most water, peat water

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

• Adding a wildcard symbol may retrieve word variants: typologie les variations ment water oral communication _ de developpement en afrique.*.