Perhaps you should try some spelling variations:
relational 2.1.2 » relations 2.1.2, relational 2.4, relationen 2.1.1
de communication » mobile communication, online communication
crop development » 2 development
technology 2.2 » technology _, technology 1, technology 3
2.2 relational » 5.2 relational, 4.2 relational, 2.3 relational
2.1.2 crisis » 2.2.2 crisis, 2.1 crisis, 2.2 crisis
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 2.2 relational 2.1.2 crisis de communication costs crop development a aortic.*.