Perhaps you should try some spelling variations:
communication barriers » communication series, communication disorders
technologies model » technological model, technologies modelling, technological models
model formulation » model simulation, budget formulation, model simulations
developpement la » developpement de, developpement et, developpement du
formulation des » formation des, formulacion de, formulation _
a communication » la communication, data communication, data communications
d developpement » de developpement, du developpement, le developpement
barriers d » barriers _, barriers a, barriers 4
la afrique » l afrique, la fabrique, en afrique
des does » des doses, der does, des dorfes
does a » does _

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

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