Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
technology contents » technology content, terminology contents, technology consensus
contents national » context national, contexte national, continuous national
4 communications » 14 communications, 4 communication, 2 communications
developpement il » developpement de, developpement et, developpement du
4 developpement » de developpement, le developpement, et developpement
national asset » national assets, national audit, national adult
asset prices » market prices
il afrique » l afrique, en afrique
prices 4 » prices _, prices a, prices 3
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology contents national asset prices 4 communications costs 4 developpement il afrique.*.