Perhaps you should try some spelling variations:
"ocean resources software" » "ocean outsourced software", "ocean measures software", "human resources software"
"open resource software" » "open opensource software", "open resonance software", "open reduce software", "open resources software", "open source software", "open sources software"
"ocean resource software" » "ocean opensource software", "ocean resonance software", "ocean reduce software", "human resource software"
"ocean source software" » "ocean sources software", "ocean surface software", "ocean space 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 resource software") OR ((((("ocean resource software") OR ("ocean source software"))) OR ("ocean resources software")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"open resource software\") or (((((\"ocean resource software\") OR (\"ocean source software\"))) or (\"ocean resources software\"))))".
• Removing quotes may allow a broader search: (( open resource software ) or ((((( ocean resource software ) OR ( ocean source software ))) or ( ocean resources software )))).
• Adding a wildcard symbol may retrieve word variants: (("open resource software") or ((((("ocean resource software") OR ("ocean source software"))) or ("ocean resources software"))))*.