Perhaps you should try some spelling variations:
communication services » telecommunications services
data communication » data communications
2.2.1 variation » 5.2.1 variation, 7.2.1 variation, 12.2.2 variation
ann development » can development, un development, asian development
typology 2.2.1 » typology 4.1
development li » development lid, development lie, development lin
services ann » services a, services als, services act
li afrique » l afrique, en afrique
cost data » test data

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

• Adding a wildcard symbol may retrieve word variants: typology 2.2.1 variation _ cost data communication services ann development li afrique.*.