Perhaps you should try some spelling variations:
clean development » human development, urban development
has relationship » hate relationship, its relationship, a relationship
relationship 12 » relationship 1, relationship 13, relationship 2
3 communication » 4 communication, de communication, data communication
technology has » technology hard, technology have, technology how
costs clean » costs clear
12 crisis » 19 crisis, 1 crisis, 11 crisis
crisis 3 » crisis _, crisis a, crisis 1

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

• Adding a wildcard symbol may retrieve word variants: technology has relationship 12 crisis 3 communication costs clean development _ artic.*.