Perhaps you should try some spelling variations:
communication barriers » communication series, communication disorders
de developpement » sme development
developpement la » developpement de, developpement et, developpement du
formulation des » formation des, formulacion de, formulation _
4 communication » 3 communication, 5.4 communication, de communication
technologies 3 » technologies _, technologies 4, technologies 2
3 formulation » _ formulation, _ formulating
barriers de » barriers d, barriere der, barriers key
la afrique » l afrique, la fabrique, en afrique
des does » des doses, der does, des dorfes
does 4 » does _, does a, does e

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

• Adding a wildcard symbol may retrieve word variants: technologies 3 formulation des does 4 communication barriers de developpement la afrique.*.