Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
technologies sector » technology sector, technologies series
sector interaction » sector interactions, vector interaction, sector integration
man communications » oman communications, human communications, iran communications
interaction how » integration how, interaction from, interaction _
2.1 development » 3.1 development, 2.3 development, 2.2 development
costs 2.1 » costs 2.3, costs 4.1, costs 2.2
1 afrique » l afrique, en afrique, 1 enrique
how data » flow data, raw data, new data
data man » data mean, data main, data map

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

• Adding a wildcard symbol may retrieve word variants: technologies sector interaction how data man communications costs 2.1 development 1 afrique.*.