Perhaps you should try some spelling variations:
information officer » information officers, information office, information officer's
communication cost » communication costs, communication costa, communications costs
technologies 2.1 » technologies _, technologies 4, technologies a
en communication » open communication, lean communication, when communication
developing urban » development urban, developing human, developing areas
2.1 information » 3.1 information
3.4 developing » 13.4 developing, 3.3 developing, 3.2 developing
urban africa » urban area
officer 4 » officer _, officer 2, officer 5
cost 3.4 » cost 2.4, cost 3.2, cost 3.5
4 en » 4 ein, 4 end, _ en

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

• Adding a wildcard symbol may retrieve word variants: technologies 2.1 information officer 4 en communication cost 3.4 developing urban africa.*.