Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
do communications » 10 communications, 14 communications, 2 communications
technology 4.1 » technology 3.1, technology 2.1, technology 1
4.1 inflation » 5.4.1 inflation, 2.3 inflation, 3.2 inflation
inflation als » inflation a, inflation auf, inflation rates
envelopment l » development li, development 1
als advice » sales advice, wall advices
costs data » cost data
advice do » advice dr, advice _, advice 7
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 4.1 inflation als advice do communications costs data envelopment l afrique.*.