Perhaps you should try some spelling variations:
technologies model » technological model, technologies modelling, technological models
data communication » data communications
des developpement » des developpements, de developpement, le developpement
developpement en » developpement et, developpement des, developpement de
communication 3 » communication _, communication a
simulation 4 » simulation _
does data » does cat
4 does » 2 does
3 des » 3 der, 3 das, a des

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

• Adding a wildcard symbol may retrieve word variants: technologies model simulation 4 does data communication 3 des developpement en afrique.*.