Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
model information » model innovation, level information, medical information
technology model » technology models, technology code, technology moral
information past » information part, information pt, information pack
past decades » past decade, last decades, last decade
decades data » debates data, cases data, decades a
1 developing » 3 developing, 4 developing, 2 developing
developing 1 » developing _, developing a, developing e
1 african » _ african, 1 africa, 2 african
costs 1 » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technology model information past decades data communications costs 1 developing 1 african.*.