Perhaps you should try some spelling variations:
3.1 communication » 3.1 communications, 3.2 communication, 3.5 communication
information can » information case, information 1, information 1.2
development v » development vs, development 1, development 2
technology 1 » technology _
can decrease » can increase, a decrease, _ decrease
decrease 3.1 » decrease _, disease 3.1, increase 3.7
v africa » 1 africa, em africa
costs 2 » costs 20, 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 1 information can decrease 3.1 communication costs 2 development v africa.*.