Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"noi luc son snippets" » "noi suc son snippets", "voi luc son snippets", "noi thuc son snippets", "noi lac son snippets", "noi luc sang snippets", "noi quoc son 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: (((("noi luc son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("noi luc son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( noi luc son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("noi luc son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.