Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tue sieu do snippets" » "thue tieu do snippets", "xe sieu do snippets", "cu sieu do snippets", "tue sieu don snippets", "tue bieu do snippets", "tue lieu dao 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: (((("tue sieu do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tue sieu do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tue sieu do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tue sieu do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.