Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan tu chi snippets" » "danh tu chi snippets", "dan su chi snippets", "ban tu chi snippets", "dan thu chi snippets", "dan tu chiu snippets", "dan 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: (((("dan tu chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan tu chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan tu chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan tu chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.