Perhaps you should try some spelling variations:
technology change » technological change, technological changes
get communication » et communication, debt communication, de communication
peter development » better development, center development, water development
change relations » exchange relations, change relationship, changing relations
development case » development china
relations 6.1 » relations 2.1, relations 3.1, relations 5.1
costs peter » costs per, costs water, costs matter
6.1 crisis » 2.1 crisis, 3.1 crisis, 1.1 crisis
crisis get » crisis great, crisis aged, crisis best
case about » care about, page about

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

• Adding a wildcard symbol may retrieve word variants: technology change relations 6.1 crisis get communication costs peter development case about.*.