Perhaps you should try some spelling variations:
communication cote » communication costs, communication costa, communication case
de communication » mobile communication, online communication
le developpement » de developpement, sme development
developpement en » developpement et, developpement des, developpement de
population wage » population age, population wide, population aged
methods rural » methods real, methods ruin
wage rate » wage rates
rate de » rate due, rate debt, rate does
cote le » cote les, cote de, cote la

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

• Adding a wildcard symbol may retrieve word variants: methods rural population wage rate de communication cote le developpement en afrique.*.