Perhaps you should try some spelling variations:
technology's state » technology state, technologies stage, technology's study
mining development » mine development, housing development
de communication » mobile communication, online communication
development case » development china
state relations » state regulation, trade relations, race relations
costs mining » costs missing, costs timing, costs defining
relations 5 » relations _, relations a, relations 3
case aortic » acute aortic
primes de » crimes de, prives de, mimes de
5 primes » _ primes, 5 prime, co primes

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

• Adding a wildcard symbol may retrieve word variants: technology's state relations 5 primes de communication costs mining development case aortic.*.