Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"fan cao toc snippets" » "nang cao toc snippets", "toan cao toc snippets", "jan cato toc snippets", "fan cac toc snippets", "fan cao hoc snippets", "fan cao ngoc 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: (((("fan cao toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("fan cao toc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( fan cao toc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("fan cao toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.