Perhaps you should try some spelling variations:
communications code » communication mode, communications case, communications models
formulation model » circulation model, simulation model, population model
le developpement » de developpement, sme development
developpement en » developpement et, developpement des, developpement de
technologies 2 » technologies _, technologies 4
2 formulation » _ formulation, 3 formulation, la formulation
model eo » model ee, model em, model eu
code le » code de, code e, code re

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 formulation model eo data communications code le developpement en afrique.*.