Perhaps you should try some spelling variations:
communication barriers » communication series, communication disorders
data communication » data communications
formulation model » circulation model, simulation model, population model
technologies la » technologies a, technologies le, technologies lead
d developpement » de developpement, du developpement, le developpement
developpement l » developpement il, developpement la, developpement de
la formulation » la formulacion, _ formulation, la formation
barriers d » barriers _, barriers a, barriers 4
model dom » model dgm, model d, model dal
l afrique » en afrique
dom data » dpm data, from data, form data

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

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