Perhaps you should try some spelling variations:
"khuan doi trinh snippets" » "khuan noi trinh snippets", "quan doi trinh snippets", "khoa doi trinh snippets", "khuan doc trinh snippets", "khuan doi tinh snippets", "khuan dong trinh snippets", "khuan doi trinh slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("khuan doi trinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khuan doi trinh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khuan doi trinh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khuan doi trinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.