Perhaps you should try some spelling variations:
development computer » development chapter, development committee, development companies
development complex » developments complexes, development company, development come
site development » sme development, mine development, estate development
complex problems » complex projects
der resource » der ressource, under resource, der ressourcen
programs. » program.

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

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