Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
development east » development southeast, development 1
technologies 1 » technologies _, technologies 4, technologies 2
east afrique » east africa, east african, en afrique
costs human » sts human, ghosts humans, beasts human
model v » model vs, model 1, model 2
v data » iv data, 2 data, 1 data

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

• Adding a wildcard symbol may retrieve word variants: technologies 1 information model v data communications costs human development east afrique.*.