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"
"hang ca code snippets" » "hang va code snippets", "nang cao code snippets", "hang tai code snippets", "hang cfd code snippets", "hang ca 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 (\"hang ca code snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( dung viet code snippets ) OR ( hang ca code snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung viet code snippets") OR ("hang ca code snippets"))) OR ("locating bug code snippets"))*.