Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toc cua loai snippets" » "toc qua loi snippets", "toc cua luat snippets", "toc cua dai snippets", "hoc cua loai snippets", "tac cua loai snippets", "doc cua loai 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: (((("toc cua loai snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toc cua loai snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toc cua loai snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toc cua loai snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.