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"
"dung cac code snippets" » "luong cac code snippets", "dung cho code snippets", "dung tai code snippets", "dung cac cong snippets", "dung cac co snippets", "dung cac che snippets"
"locating bug code slippers" » "locating bung code slippers", "locating bugs code slippers"

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

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