Perhaps you should try some spelling variations:
trials informatics » materials informatics, social informatics, urban informatics
arab communication » arabia communications, data communication, job communication
technology trials » technology materials, technology tools, technology trade
developing urban » development urban, developing human, developing areas
informatics gap » information gap, information gaps, informatics _
4 developing » 3 developing
urban area » urban areas
non arab » pan arab, new arab, non art
gap non » gap ngos
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 trials informatics gap non arab communication costs 4 developing urban area.*.