Perhaps you should try some spelling variations:
formulation solution » simulation solution, formation evolution, formulation cohesion
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
a communicative » _ communicative, a communication, la communication
communicative a » communicative _, communicative 12, communicate a
solution ratio » solution data, solution formation, solution migration
ratio does » nation does, ratio der, rate does
does a » does _
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: policy formulation solution ratio does a communicative a de developpement en afrique.*.