Perhaps you should try some spelling variations:
resonance software » assurance software, enhance software, finance software
resources software » source software, outsourced software, measures software
resource software » source software, opensource software, reduce software

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: "((\"open ((((resource software) OR (resonance software))) OR (resources software))\") or (\"ocean ((((resource software) OR (resonance software))) OR (resources software))\"))*".
• The words AND, OR and NOT may confuse the search; try adding quotes: "\"((\\"open ((((resource software) OR (resonance software))) or (resources software))\\") or (\\"ocean ((((resource software) OR (resonance software))) or (resources software))\\"))*\"".
• Removing quotes may allow a broader search: (( open ((((resource software) OR (resonance software))) or (resources software)) ) or ( ocean ((((resource software) OR (resonance software))) or (resources software)) ))*.