Perhaps you should try some spelling variations:
model development » local development, social development, global development
de communication » mobile communication, online communication
technology 1 » technology _
1 relations » 3 relations, a relations, 1.2 relations
relations a » relations _
costs model » cost model, cost models, costs money
china east » china past, china coast, china 21st
prices de » prices does, prices _, prices a
a prices » a price, 2 prices, gas prices

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

• Adding a wildcard symbol may retrieve word variants: technology 1 relations a prices de communication costs model development china east.*.