Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thuoc ma don snippets" » "hoc ma don snippets", "duoc ma don snippets", "thuoc la don snippets", "thuoc ba don snippets", "thuoc va don 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: (((("thuoc ma don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thuoc ma don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuoc ma don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuoc ma don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.