Perhaps you should try some spelling variations:
case communication » based communication, scale communication, face communication
communication asia » communication a, communication about, communication among
technologien a » technologien am, technologien ad, technologien _
a informations » a information, 2 informations, 3 informations
development 4 » development 1
2 sites » _ sites, et sites
4 areas » 1 areas, 2 areas, 4 areal
2 site » _ site, a site, 7 site
asia a » asia _

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "technologien a informations ((2 site) OR (2 sites)) case communication asia a development 4 areas.~".
• Adding a wildcard symbol may retrieve word variants: technologien a informations ((2 site) OR (2 sites)) case communication asia a development 4 areas.*.