Perhaps you should try some spelling variations:
yemen communications » element communications, recent communications, sweden communications
communications costs » communication costs, communications _
information context » information content, information contents, information centers
technologien aids » technologien als, technologien ad, technologien des
aids information » chandos information, series information
3 developing » 3 development
developing 1 » developing _, developing a, developing e
3 yemen » _ yemen, 2.3 yemen, _ yemeni
costs 3 » 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: technologien aids information context 3 yemen communications costs 3 developing 1 africa.*.