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