Perhaps you should try some spelling variations:
overall population » rural population, general population
date communication » data communication, data communications, parte communication
communication cote » communication costs, communication costa, communication case
et developpement » de developpement, le developpement, test development
developpement en » developpement et, developpement des, developpement de
methods overall » methods overview
population aged » population age, population based, population ahead
aged trade » agenda trade, added trade, based trade
trade date » trade data, matrade dato
cote et » cote des, cote les, forte et

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

• Adding a wildcard symbol may retrieve word variants: methods overall population aged trade date communication cote et developpement en afrique.*.