Perhaps you should try some spelling variations:
pt communication » put communication, et communication, post communication
case development » care development, based development, scale development
development aid » development a, development africa, development agenda
technology 2.4 » technology 2.2, technology 2.1, technology 2.3
2.4 relations » 1.4 relations, 2.2 relations, 4.4 relations
relations 2.1 » relations 3.1, relations 1, relations _
2.1 crisis » 3.1 crisis, 2010 crisis, 2011 crisis
costs case » costs cash
crisis pt » crisis _, crisis a

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

• Adding a wildcard symbol may retrieve word variants: technology 2.4 relations 2.1 crisis pt communication costs case development aid aortic.*.