Perhaps you should try some spelling variations:
development does » development data, development 1, development 1.1
communications a » communications _, communications law, communications media
typologies et » typologie et, typologies art, typologies _
et variations » its variations, 1er variations, ier variations
does afrique » en afrique, does africa
em data » them data, aim data, dpm data
nm data » aim data, dpm data, gbm data
a gas » _ gas, 2 gas, 3 gas

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "typologies et variations _ ((em data) OR (nm data)) communications a gas development does afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologies et variations _ ((em data) OR (nm data)) communications a gas development does afrique.*.