Perhaps you should try some spelling variations:
challenges traditional » challenge traditional, challenging traditional, changes traditional
technology challenges » technological challenges, technology change, technical challenges
peter development » better development, center development, water development
de communication » mobile communication, online communication
traditional 1 » traditional _, traditional hr, traditional iv
costs peter » costs per, costs water, costs matter
crisis de » crisis del, crisis due, crisis debt
1 crisis » 19 crisis
china 3 » china 1

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

• Adding a wildcard symbol may retrieve word variants: technology challenges traditional 1 crisis de communication costs peter development china 3.*.