Perhaps you should try some spelling variations:
clear development » clean development, clean developoment, car development
de communication » mobile communication, online communication
technology 2.2 » technology _, technology 1, technology 3
2.2 relational » 5.2 relational, 4.2 relational, 2.3 relational
relational re » relational _, relational view, relational self
re crisis » pre crisis, de crisis, care crisis
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 re crisis de communication costs clear development a aortic.*.