Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tiep van do snippets" » "tiep can do snippets", "tiep va do snippets", "tien van do snippets", "tiep van dao snippets", "tiep van de snippets", "tiep 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: (((("tiep 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: (((("tiep van do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tiep van do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tiep van do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.