Perhaps you should try some spelling variations:
personal communication » interpersonal communication
information 2.3.2 » information 2.2.2, information 4.3.2, information 3.2
10.4 developing » 1.4 developing, 12.4 developing, 10.3 developing
developing port » developing post, developing export, developing exports
technologies 2 » technologies _, technologies 4
costs 10.4 » costs 10.6, costs 11.4, costs 12.4
2.3.2 a » 2.3.2 _, 2.3.2 das

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information 2.3.2 a personal communication costs 10.4 developing port access.*.