Perhaps you should try some spelling variations:
13 communication » 3 communication, 1 communication, 10 communication
technology road » technology role, technology roadmap, technology robot
information old » information och, information oder, information open
2.2 development » 3.2 development, 2.3 development, 4.2 development
china africa » cpia africa, china asia
old debates » old debate
debates 13 » debates 1.3, debates 3, debates 1
costs 2.2 » costs 4.2, costs 2.3, cost 2.2

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

• Adding a wildcard symbol may retrieve word variants: technology road information old debates 13 communication costs 2.2 development china africa.*.