Perhaps you should try some spelling variations:
communication cross » communication costs
de communication » mobile communication, online communication
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
3 developing » 3 development
developing 2 » developing _, developing a, developing e
cross 3 » cross _, cross 1, cross c
2 areas » 1 areas, 2 areal, 4 areas
1 adb » _ adb, 1 ada, 1 adr
1 add » _ 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 a information ((1 adb) OR (1 add)) de communication cross 3 developing 2 areas.~".
• Adding a wildcard symbol may retrieve word variants: technologies a information ((1 adb) OR (1 add)) de communication cross 3 developing 2 areas.*.