Perhaps you should try some spelling variations:
4.1.7 communication » 4.1.7.2 communication, 4.1 communication, 6.1.3 communication
communication costa » communication costs, communications costs, communication cote
del development » model development, delta development, well development
risk inflation » risk information, rising inflation, risk inclination
inflation data » inflation rate, infection data, inflation das
development li » development lid, development lie, development lin
rate 4.1.7 » rate 4.1.2, late 4.1.6, rate 3.1.2
li afrique » l afrique, en afrique
data rate » data rates, data data, data related
costa del » costo del, costa e, cose del

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

• Adding a wildcard symbol may retrieve word variants: technology risk inflation data rate 4.1.7 communication costa del development li afrique.*.