Perhaps you should try some spelling variations:
"trinh thanh anh snippets" » "tinh thanh anh snippets", "trinh han anh snippets", "trinh toan anh snippets", "trinh thanh binh snippets", "trinh thanh san snippets", "trinh hinh anh snippets", "trinh thanh anh slippers"
"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", "dung 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: (((("trinh thanh anh snippets") or ("dung cac code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh thanh anh snippets") OR ("dung cac code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh thanh anh snippets ) or ( dung cac code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh thanh anh snippets") or ("dung cac code snippets"))) or ("locating bug code snippets"))*.