Perhaps you should try some spelling variations:
technology rapid » technology rate, technology road, technology trap
rapid population » world population
2 communication » 3 communication, 4 communication, 1 communication
population age » population change, population aging, population data
20 development » 2 development, 2015 development, 2007 development
age group » age groups
1 afrique » l afrique, en afrique, 1 enrique
costs 20 » costs 60, costs 2.3, costs 2.1
group 2 » group _, group a

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

• Adding a wildcard symbol may retrieve word variants: technology rapid population age group 2 communication costs 20 development 1 afrique.*.