Perhaps you should try some spelling variations:
korea communications » guinea communications, data communications, a communications
communications costs » communication costs, communications _
technology's role » technology role
clear development » clean development, clean developoment, car development
development case » development china
role relations » whole relations, race relations, people relations
relations 2 » relations _, relations a, relations 3
case hard » case board, case heart, use hard
2 crises » _ crises, 2 crisis, do crises

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

• Adding a wildcard symbol may retrieve word variants: technology's role relations 2 crises korea communications costs clear development case hard.*.