Perhaps you should try some spelling variations:
"dung viet code snippets" » "nang viet code snippets", "cong viet code snippets", "mang viet code snippets", "dung viet co snippets", "dung viet some snippets", "dung viet code slippers"
"cong dung code snippets" » "cuong dung code snippets", "cong dong code snippets", "cong luong code snippets", "cong dung cong snippets", "cong dung co snippets", "cong dung de snippets", "cong dung code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"dung viet code snippets\") OR (\"cong dung code snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( dung viet code snippets ) OR ( cong dung code snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung viet code snippets") OR ("cong dung code snippets"))) OR ("locating bug code snippets"))*.