Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc phan dot snippets" » "hoc phan dot snippets", "duc phan dot snippets", "doc than dot snippets", "doc nhan dot snippets", "doc phan do snippets", "doc phap dot snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("doc phan dot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doc phan dot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc phan dot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc phan dot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.