Perhaps you should try some spelling variations:
open communication » human communication, 3 communication, 4 communication
communication std » communication study, communication set, communication sur
development acute » development act, development route, development age
relations 2.1 » relations 3.1, relations 1, relations _
technology 3 » technology _, technology 1, technology 4
acute aortic » after aortic
3 relations » et relations, des relations
crisis open » crisis one, crisis over, crisis onset
2.1 crisis » 3.1 crisis, 2010 crisis, 2011 crisis
std sector » std vector, seed sector, sme sector

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

• Adding a wildcard symbol may retrieve word variants: technology 3 relations 2.1 crisis open communication std sector development acute aortic.*.