Perhaps you should try some spelling variations:
development chapter » development center, development case
technology debate » technology debts, technology related, technology state
de communication » mobile communication, online communication
debate relative » female relative, average relative
relative risk » relative price
risk crises » risk crisis, price crises, prime crises
chapter car » chapter four
crises de » crises _, crises a, crises 2
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology debate relative risk crises de communication costs a development chapter car.*.