Perhaps you should try some spelling variations:
communication 3.3 » communication _, communication a, communication 1
trade development » software development
technologies 2 » technologies _, technologies 4
formulacion de » formulation des, formacion de, formulation _
2 formulacion » 2 formulation, la formulacion, _ formulation
3.3 trade » 5.3 trade, 5.3.3 trade, 12.3 trade
1 afrique » l afrique, en afrique, 1 enrique
de does » der does, do does, one does

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 formulacion de does _ communication 3.3 trade development 1 afrique.*.