Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
3.1 communications » 3.1 communication, 4.1 communication, 1.1 communication
technology 4ir » technology 4, technology 4.1, technology 4.2
costs resource » cost resource, coastal resource, crisis resource
development li » development lid, development lie, development lin
4ir inflation » der inflation, die inflation, aid inflation
inflation und » inflation index, inflation _, inflation tax
li afrique » l afrique, en afrique
und case » und care, und cash, id case
case 3.1 » case 4.1, case 3.2, case 1

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

• Adding a wildcard symbol may retrieve word variants: technology 4ir inflation und case 3.1 communications costs resource development li afrique.*.