Perhaps you should try some spelling variations:
communication barriers » communication series, communication disorders
way communication » why communication, daily communication, data communication
formulation des » formation des, formulacion de, formulation _
technologies 2 » technologies _, technologies 4
10 development » 1 development, 11 development, 16 development
2 formulation » _ formulation, 3 formulation, la formulation
barriers 10 » barriers 10.1, barriers 1.1, barriers 1.3
1 afrique » l afrique, en afrique, 1 enrique
des does » des doses, der does, des dorfes
does way » does war, goes way, does what

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 formulation des does way communication barriers 10 development 1 afrique.*.