Perhaps you should try some spelling variations:
development competition » development cooperation, development corporation, development competitiveness
competition program » compensation program, compensation programs, comparison program
developed countries » developing countries
countries programs » countries program, country programs, countries problems
game developed » have developed, game development, large developed
das software » dal software, desk software, der software
web game » web page, den game, web lam

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( das software development competition program. ) OR ( web game developed countries programs. ))~.
• Adding a wildcard symbol may retrieve word variants: (( das software development competition program. ) or ( web game developed countries programs. ))*.