Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan van do snippets" » "dang van do snippets", "doan van do snippets", "dao van do snippets", "dan van dao snippets", "dan van de snippets", "dan van du 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: (((("dan van do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan van do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan van do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan van do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.