Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan lu hoi snippets" » "dan luu hoi snippets", "dan su hoi snippets", "dan tu hoi snippets", "dan le hoi snippets", "dan luat hoi 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 lu hoi 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 lu hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan lu hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan lu hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.