Perhaps you should try some spelling variations:
technologies 2.1 » technologies _, technologies 4, technologies a
de communication » mobile communication, online communication
2.1 information » 3.1 information
10 developing » 1 developing, 3 developing, 4 developing
developing a » developing _
model state » modern state, model system
state de » state der, state debt, state does
costs 10 » costs 1, costs 20, costs 60
a trends » 2 trends, 3 trends, a trend

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 model state de communication costs 10 developing a trends.*.