Perhaps you should try some spelling variations:
china's development » child development, business development
sex communication » de communication, ec communication, et communication
communication did » communication die, communication des, communication de
development state » development stage, developmental state, redevelopment state
expo information » export information, mexico information, do information
technology expo » technology export, technology expand, technology expert
state africa » trade africa
gap from » gaps from, map from, gdp from
from sex » from six, from self, from semi

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

• Adding a wildcard symbol may retrieve word variants: technology expo information gap from sex communication did china's development state africa.*.