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"
"dong chi code snippets" » "dong cho code snippets", "dong thi code snippets", "dung chi code snippets", "dong cfd code snippets", "dong chi con snippets", "dong chi cong snippets", "dong chi 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: "((((\"dong chi code snippets\") OR (\"dung viet code snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( dong chi code snippets ) OR ( dung viet code snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dong chi code snippets") OR ("dung viet code snippets"))) OR ("locating bug code snippets"))*.