Perhaps you should try some spelling variations:
health communication » data communication
power development » water development, career development, hydropower development
development case » development china
relations 7.5 » relations 2.5, relations 7.1, relations 7.3
technology 1 » technology _
1 relations » 3 relations, a relations, 1.2 relations
rich health » fish health
costs power » cost power, costs per, costs peter
7.5 rich » 7.5 high
case one » phase one

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

• Adding a wildcard symbol may retrieve word variants: technology 1 relations 7.5 rich health communication costs power development case one.*.