Perhaps you should try some spelling variations:
communication cross » communication costs
free communication » force communication, face communication, free communicating
technologies 2 » technologies _, technologies 4
information 1 » information 2, information 3, information 3.2
1 developing » 3 developing, 4 developing, 2 developing
aid free » aids free, aid from, 2d free
cross 1 » cross _, cross c
4 areal » _ areal, 2 areal, 4 areas
1 aid » _ aid, 1 aim, 1 add

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "technologies 2 information 1 aid free communication cross 1 developing ((4 areal) OR (4 real)).~".
• Adding a wildcard symbol may retrieve word variants: technologies 2 information 1 aid free communication cross 1 developing ((4 areal) OR (4 real)).*.