Perhaps you should try some spelling variations:
de communication » mobile communication, online communication
crop development » 2 development
relations 1.2.3 » relations 1.2.1, relations 4.2.3, relations 9.2.3
technology 3 » technology _, technology 1, technology 4
1.2.3 crisis » 13.2.2 crisis, 13.3 crisis, 2.2.2 crisis
3 relations » et relations, des relations
costs crop » costs cross, costs from, costs chap
crisis de » crisis del, crisis due, crisis debt
a aortic » _ aortic, _ artic

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

• Adding a wildcard symbol may retrieve word variants: technology 3 relations 1.2.3 crisis de communication costs crop development a aortic.*.