Perhaps you should try some spelling variations:
"python using code snippets" » "python using cfd snippets", "python using one snippets", "python using code slippers"
"nam ap trac snippets" » "nam tap trac snippets", "nam anh trac snippets", "nam hai trac snippets", "nam a trac snippets", "nam ap trac slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("nam ap trac snippets") or ("python using code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nam ap trac snippets") OR ("python using code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam ap trac snippets ) or ( python using code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam ap trac snippets") or ("python using code snippets"))) or ("locating bug code snippets"))*.