Perhaps you should try some spelling variations:
china development » china's development, child development, mena development
pt communication » put communication, et communication, post communication
development safe » development saber, development stage, development staff
technology eimt » technology ecit, technology e, technology equipment
eimt relations » et relations, east relations, cost relations
relations 5.2 » relations 5.1, relations 3.2, relations 1.2
safe abortion » unsafe abortion, unsafe abortions
5.2 crisis » 15.2 crisis, 2.2 crisis, 3.2 crisis
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 eimt relations 5.2 crisis pt communication costs china development safe abortion.*.