Perhaps you should try some spelling variations:
"cong viet code snippets" » "cong viec code snippets", "thong viet code snippets", "nang viet code snippets", "cong viet co snippets", "cong viet some snippets", "cong viet code slippers"
"phan cac code snippets" » "nhan cach code snippets", "phan dau code snippets", "phan lap code snippets", "phan cac cong snippets", "phan cac co snippets", "phan cac che snippets", "phan cac 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.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("phan cac code snippets") or ("cong viet code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan cac code snippets") OR ("cong viet code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan cac code snippets ) or ( cong viet code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan cac code snippets") or ("cong viet code snippets"))) or ("locating bug code snippets"))*.