Perhaps you should try some spelling variations:
information survey » information sources, information source, information series
oral communication » personal communication
developpement sans » developpement dans, developpement des, developpement en
technologies part » technologies art, technologies pt, technologies a
part information » party information, paris information, plant information
de developpement » sme development
survey knew » survey key, survey knn, survey annex
sans africa » loans africa, gays africa, bank's africa
knew oral » knew moral, new oral, new moral
a de » a die, a der, a des

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

• Adding a wildcard symbol may retrieve word variants: technologies part information survey knew oral communication a de developpement sans africa.*.