Perhaps you should try some spelling variations:
"trinh can thuc snippets" » "trinh han thuc snippets", "trinh san thuc snippets", "trinh cau thuc snippets", "trinh dan thuc snippets", "trinh van thuc snippets", "trinh cay thuc snippets", "trinh can thuc slippers"
"trong cac code snippets" » "trong cac cong snippets", "trong cac co snippets", "trong cac che snippets", "trong 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.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh can thuc snippets") OR ("trong cac code snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( trinh can thuc snippets ) or ( trong cac code snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("trinh can thuc snippets") or ("trong cac code snippets"))) or ("locating bug code snippets"))*.