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