Perhaps you should try some spelling variations:
communication barriers » communication series, communication disorders
data communication » data communications
3.2 developments » 3.2 development, 1.2 developments, 4.2 development
formulation des » formation des, formulacion de, formulation _
technologies a » technologies _, technologies 4, technologies 2
developments l » developments _, developments 4, developments 3
a formulation » la formulation, _ formulation, 3 formulation
barriers 3.2 » barriers _, barriers a, barriers 4
does data » does cat
l afrique » en afrique
des does » des doses, der does, des dorfes

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

• Adding a wildcard symbol may retrieve word variants: technologies a formulation des does data communication barriers 3.2 developments l afrique.*.