Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho can noi snippets" » "cho cac noi snippets", "cho phan noi snippets", "cho cong noi snippets", "cho van noi snippets", "cho cau noi snippets", "cho ban noi 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: (((("cho can noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cho can noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho can noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho can noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.