Perhaps you should try some spelling variations:
3.2 communication » 3 communication, 2.3 communication, de communication
population crude » population de, population case, population chile
developpement la » developpement de, developpement et, developpement du
technology rate » technology state, technology role, technology related
rate population » create population, age population, male population
a developpement » au developpement, de developpement, le developpement
price 3.2 » prices 3.2, price 2.2, rice 3.2
costs a » costs _, costs 4
fabrique. » afrique., fabrice.

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

• Adding a wildcard symbol may retrieve word variants: technology rate population crude price 3.2 communication costs a developpement la fabrique.*.