Perhaps you should try some spelling variations:
3.2 communication » 3 communication, 2.3 communication, de communication
ece development » ce development, peace development, rice development
technology 4ir » technology 4, technology 4.1, technology 4.2
development li » development lid, development lie, development lin
4ir inflation » der inflation, die inflation, aid inflation
inflation das » inflation bias, inflation tax, inflation a
li afrique » l afrique, en afrique
costs ece » costs ch
das case » das coase, das cafe, das close
case 3.2 » case 4.2, case 3.1, case 5.2

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

• Adding a wildcard symbol may retrieve word variants: technology 4ir inflation das case 3.2 communication costs ece development li afrique.*.