Perhaps you should try some spelling variations:
communication costa » communication costs, communications costs, communication cote
information ratio » information nation, information matrix, information section
gdp communication » de communication, amp communication, up communication
technologies 2 » technologies _, technologies 4
2.2 developing » 3.2 developing, 3.3 developing, 2.2 development
ratio debt » rate debt, ratio test, ratio der
costa 2.2 » cost 2.2, costs 2.2, forsta 2.2

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information ratio debt gdp communication costa 2.2 developing _ areas.*.