Perhaps you should try some spelling variations:
communication laos » communication law, communication layer, communication links
urban development » human development
19 communication » 1 communication, 10 communication, 9 communication
development rate » development create, development route, development water
technologies 2 » technologies _, technologies 4
information 2 » information 3
rate africa » rates africa, rates aafrica, trade africa
laos urban » lands urban
2 dem » 2 der, _ dem, 2 des

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 dem 19 communication laos urban development rate africa.*.