Perhaps you should try some spelling variations:
communication tasks » communicative tasks, communication tools, communication tres
time communication » de communication, mobile communication, online communication
modern development » modern developments, model development, models development
technology change » technological change, technological changes
change relations » exchange relations, change relationship, changing relations
tasks modern » tasks under, task model, task models
relations a » relations _
price time » place time, peace time, practice time
china four » china fur, china our, china your
a price » a primer

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

• Adding a wildcard symbol may retrieve word variants: technology change relations a price time communication tasks modern development china four.*.