Perhaps you should try some spelling variations:
"dang viet phan snippets" » "nang viet phan snippets", "danh viet phan snippets", "mang viet phan snippets", "dang viet thanh snippets", "dang viet ha snippets", "dang viet van snippets", "dang viet phan 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: (((("dang viet phan snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang viet phan snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang viet phan snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang viet phan snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.