Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ton tu choi snippets" » "ton su choi snippets", "ton tu chi snippets", "ton tu chon snippets", "toan tu choi snippets", "tong tu choi snippets", "mon tu choi 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 choi 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 choi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ton tu choi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ton tu choi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.