Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ton tu hoa snippets" » "toan tu hoa snippets", "tong tu hoa snippets", "mon tu hoa snippets", "ton tu khoa snippets", "ton tu hoai snippets", "ton tuy hoa 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: (((("ton tu hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ton tu hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ton tu hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ton tu hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.