Perhaps you should try some spelling variations:
communication laos » communication law, communication layer, communication links
urban development » human development
development rate » development create, development route, development water
9 communication » 3 communication, 4 communication, 1 communication
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
dem 9 » dem 19, dem _, dem 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 2 dem 9 communication laos urban development rate africa.*.