Perhaps you should try some spelling variations:
technological gains » technological gaps, technological basis, ecological gains
developpement west » developpement des, developpement et, development west
gains formulation » chain formulation, mao's formulation, means formulation
der developpement » de developpement, des developpements, leur developpement
3 communication » 4 communication, de communication, data communication
formulation 3 » formulation _, formulations _, formulating _
west african » west africa, east africa
media der » media order, media under, mediale der

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

• Adding a wildcard symbol may retrieve word variants: technological gains formulation 3 a 3 communication media der developpement west african.*.