Perhaps you should try some spelling variations:
clear development » clean development, clean developoment, car development
development work » development network, development workshop, development framework
technologies 4 » technologies _
formulation de » formulation des, formulacion de, formulation du
4 formulation » _ formulation, 3 formulation, 2 formulation
work african » work africa, world african, works africa
so mobile » go mobile, non mobile, how mobile
de so » de son, de soi, de sol

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 formulation de so mobile communication costs clear development work african.*.