Perhaps you should try some spelling variations:
population structure » production structure
overall population » rural population, general population
communication cote » communication costs, communication costa, communication case
les developpement » le developpement, des developpements, leur developpement
developpement de » developpement des, developpement durable
structure three » structure theme, structure through, structure theory
3 communication » 4 communication, de communication, data communication
de afrique » de l'afrique, en afrique, l afrique
cote les » cote des, contre les, compte les
three 3 » three _, three 6, three a
method » methods

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

• Adding a wildcard symbol may retrieve word variants: method overall population structure three 3 communication cote les developpement de afrique.*.