Perhaps you should try some spelling variations:
variation theory » valuation theory, evaluation theory, animation theory
le developpement » de developpement, sme development
developpement en » developpement et, developpement des, developpement de
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
data mass » data marts, data glass, data man's

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

• Adding a wildcard symbol may retrieve word variants: typologie de variation theory data mass communication _ le developpement en afrique.*.