Perhaps you should try some spelling variations:
"open resources software" » "open outsourced software", "open measures software", "ocean resources software", "open sources software", "own resources software"
"ocean resource software" » "ocean opensource software", "ocean resonance software", "ocean reduce software", "ocean resources software", "human resource software"

Try widening your search to All Fields.

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