Perhaps you should try some spelling variations:
"dun trinh xuan snippets" » "dun trinh quan snippets", "dun trinh luan snippets", "dun trinh luat snippets", "dan trinh xuan snippets", "xuan trinh xuan snippets", "dinh trinh xuan snippets", "dun trinh xuan 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: (((("dung java java snippets") or ("dun trinh xuan snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("dun trinh xuan snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( dun trinh xuan snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("dun trinh xuan snippets"))) or ("locating bug code snippets"))*.