Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luoc doi noi snippets" » "cuoc doi noi snippets", "luoc dai noi snippets", "hoc doi noi snippets", "luoc doi voi snippets", "luoc doi moi snippets", "luoc loi 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: (((("luoc doi 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: (((("luoc doi noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luoc doi noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luoc doi noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.