Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giap toi du snippets" » "giap thi du snippets", "giap voi du snippets", "gia toc du snippets", "giap toi uu snippets", "giap tri du snippets", "giap toi da 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: (((("giap toi du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("giap toi du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giap toi du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giap toi du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.