Perhaps you should try some spelling variations:
population strategy » education strategy, population estimates, population structure
de communication » mobile communication, online communication
au developpement » du developpement, de developpement, le developpement
technology age » technology usage, technology wages, technology a
strategy trade » strategic trade, strategy trust, strategy strategy
des afrique » en afrique, de l'afrique
trade de » trade die, rade de, trade date

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

• Adding a wildcard symbol may retrieve word variants: technology age population strategy trade de communication _ au developpement des afrique.*.