Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
ce communications » mce communications, cell communications, face communications
data development » delta development, doha development, data envelopment
development lie » development life, development li, development lid
technology hiv » technology have, technology high, technology how
infection user » infection use, intention user, infection causes
user devices » power devices, other devices, based devices
lie afrique » l afrique
devices ce » devices ied, devices _, devices 3
costs data » cost data

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

• Adding a wildcard symbol may retrieve word variants: technology hiv infection user devices ce communications costs data development lie afrique.*.