Perhaps you should try some spelling variations:
"trinh duong dan snippets" » "trinh dung dan snippets", "trinh phuong dan snippets", "dinh duong dan snippets", "trinh duong dang snippets", "trinh huong dan snippets", "trinh duong van snippets", "trinh duong dan 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 duong dan 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 duong dan snippets") OR ("dung cac code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh duong dan snippets ) or ( dung cac code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh duong dan snippets") or ("dung cac code snippets"))) or ("locating bug code snippets"))*.