Perhaps you should try some spelling variations:
"python using open snippets" » "python using opencl snippets", "python using one snippets"
"nam va trac snippets" » "nam va tac snippets", "nam tap trac snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"nam va trac snippets\") OR (\"python using open snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( nam va trac snippets ) OR ( python using open snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("nam va trac snippets") OR ("python using open snippets"))) OR ("locating bug code snippets"))*.