Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"xac dao noi snippets" » "tac dao noi snippets", "mac dao noi snippets", "xac cao noi snippets", "xac dau noi snippets", "xac dao voi snippets", "xac nao 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: (((("xac dao 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: (((("xac dao noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( xac dao noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("xac dao noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.