Perhaps you should try some spelling variations:
1973 communication » 13 communication, 1.3 communication, 19 communication
technology wages » technology age, technology week, technology usage
wages population » age population, wars population, largest population
population rates » population debates, population related, population data
le developpement » de developpement, sme development
developpement de » developpement des, developpement durable
de afrique » de l'afrique, en afrique, l afrique
rates can » rate can, rates cape, rates hans
can 1973 » van 1973, dan 1973, cara 1973
costs le » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technology wages population rates can 1973 communication costs le developpement de afrique.*.