Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
information can » information case, information 1, information 1.2
2 communication » 3 communication, 4 communication, 1 communication
3.4 developing » 13.4 developing, 3.3 developing, 3.2 developing
technology 1 » technology _
can debating » case debating, read debating, 1 debating
developing e » developing _, developing a, developing east
debating 2 » debating _
cost 3.4 » cost 2.4, cost 3.2, cost 3.5
e africa » em africa, de africa, eu africa

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

• Adding a wildcard symbol may retrieve word variants: technology 1 information can debating 2 communication cost 3.4 developing e africa.*.