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