Perhaps you should try some spelling variations:
development acute » development act, development route, development age
technology trade » technology trends, technology transfer, technology transfers
trade relations » trade regulation
3 communication » 4 communication, de communication, data communication
costs career » costs chapter, costs case, costs clear
acute aortic » after aortic
relations 1 » relations _, relations a, relations 3
1 crisis » 19 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 trade relations 1 crisis 3 communication costs career development acute aortic.*.