Perhaps you should try some spelling variations:
"dung viet some snippets" » "nang viet some snippets", "cong viet some snippets", "mang viet some snippets", "dung viet song snippets"
"dong dat code snippets" » "dong vat code snippets", "dung dat code snippets", "dong ha code snippets", "dong rate code snippets", "dong dat de snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung viet some snippets") or ("dong dat code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung viet some snippets") OR ("dong dat code snippets"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( dung viet some snippets ) or ( dong dat code snippets ))) or ( locating bug code snippets ))*.