Perhaps you should try some spelling variations:
3.2 communication » 3 communication, 2.3 communication, de communication
clean development » human development, urban development
development li » development lid, development lie, development lin
technology 2 » technology _, technology 1, technology 3
2 inflation » 12 inflation, _ inflation, 6 inflation
rate reduce » rates reduce, trade reduce, gates reduce
costs clean » costs clear
li afrique » l afrique, en afrique

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

• Adding a wildcard symbol may retrieve word variants: technology 2 inflation rate reduce 3.2 communication costs clean development li afrique.*.