Perhaps you should try some spelling variations:
development complex » developments complexes, development computer, development company
future development » estate development, resource development
development plan » development plans, development planning, development policy
complex problems » complex projects
plan programm » play programme, loan programme, loan program
der software » adept software, free software, a software

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( 4 future development plan programm. ) or ( der software development complex problems. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( 4 future development plan programm. ) OR ( der software development complex problems. )).
• Adding a wildcard symbol may retrieve word variants: (( 4 future development plan programm. ) or ( der software development complex problems. ))*.