Perhaps you should try some spelling variations:
module communications » mobile communications, mobile communication, house communications
communications costs » communication costs, communications _
interaction term » interaction _
technologies 2 » technologies _, technologies 4
2 interaction » 3 interaction, 3.2 interaction, 3.1 interaction
data module » stata module, data model, data models
term data » firm data, farm data, form data
1 afrique » l afrique, en afrique, 1 enrique

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 interaction term data module communications costs _ development 1 afrique.*.