Perhaps you should try some spelling variations:
oral communication » personal communication
communication mode » communication model, communication modes, communication module
information 1.5.3 » information 10.5.3, information 1.5.2, information 2.5.3
technologies 2 » technologies _, technologies 4
2 developing » 3 developing, 4 developing, 2 development
developing e » developing _, developing a, developing east
1.5.3 why » 1.1.3 why, 1.2.3 why, 1.3.3 why
why oral » why rural, why deal
e access » 2 access, 3 access, 4 access
mode 2 » mode _, code 2, mode 1

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information 1.5.3 why oral communication mode 2 developing e access.*.