Perhaps you should try some spelling variations:
communication modes » communication model, communication des, communication media
deal communication » real communication, oral communication, cell communication
information 3.5.2 » information 1.5.2, information 3.2.2, information 3.3.2
technologien dis » technologien des, technologien als, technologien im
dis information » mis information, aids information, des informations
developing cost » developing post, developing cross, developing east
1.4 developing » 12.4 developing, 1.3 developing, 14 developing
cost access » port access, out access, forest access
3.5.2 who » 3.5.2 two, 3.5.2 how
modes 1.4 » models 1.4, model 1.4, modes 1.3
who deal » who fell, lbo deal, who beat

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

• Adding a wildcard symbol may retrieve word variants: technologien dis information 3.5.2 who deal communication modes 1.4 developing cost access.*.