Perhaps you should try some spelling variations:
rural development » social development
de communication » mobile communication, online communication
technology 10.7 » technology 10.4, technology 10.3, technology 1.7
inflation rates » inflation rate
communication 4 » communication _, communication a, communication 3
development 2.1 » development 1
10.7 inflation » 10 inflation, 9.7 inflation, 12 inflation
2.1 afrique » 2014 afrique
rates rule » bayes rule, rate rules, rates reduce
rule de » rule die
4 rural » a rural, 2 rural

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

• Adding a wildcard symbol may retrieve word variants: technology 10.7 inflation rates rule de communication 4 rural development 2.1 afrique.*.