Perhaps you should try some spelling variations:
"ocean resources software" » "ocean source software", "ocean outsourced software", "ocean measures software", "human resources software"
"open resource software" » "open source software", "open opensource software", "open resonance software", "open resources software", "open sources software"
"ocean resource software" » "ocean source software", "ocean opensource software", "ocean resonance software", "human resource 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 ((("ocean resource 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 resources software\"))))*".
• Removing quotes may allow a broader search: (( open resource software ) or ((( ocean resource software ) OR ( ocean resources software ))))*.