Perhaps you should try some spelling variations:
development state » development stage, developmental state, redevelopment state
gnp development » gdp development, amp development, up development
real software » dal software, health software, freie software
state status » state states, states states, staff status
real gnp » real gdp

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( real gnp development state status ) or ( real software development state status ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( real gnp development state status ) OR ( real software development state status )).
• Adding a wildcard symbol may retrieve word variants: (( real gnp development state status ) or ( real software development state status ))*.