Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat nghe hoi snippets" » "day nghe hoi snippets", "da nghe hoi snippets", "dang nghe hoi snippets", "dat nghe hoa snippets", "dat nghe noi snippets", "dat nghe moi 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: (((("dat nghe 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: (((("dat nghe hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat nghe hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat nghe hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.