Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"huu hang ton snippets" » "huu khang ton snippets", "huu thang ton snippets", "huu han ton snippets", "huu hang nong snippets", "huu hang cong snippets", "huu hang tai 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: (((("huu hang ton snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("huu hang ton snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( huu hang ton snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huu hang ton snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.