Perhaps you should try some spelling variations:
"trinh cac che snippets" » "trinh cau che snippets", "trinh chat che snippets", "trinh chao che snippets", "trinh cac he snippets", "trinh cac chien snippets", "trinh cac chat snippets"
"hang luan code snippets" » "tang luan code snippets", "dung luan code snippets", "hang luan cong snippets", "hang luan che snippets", "hang luan de snippets"
"locating bug code snippets" » "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 cac che snippets") OR ("hang luan code snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( trinh cac che snippets ) or ( hang luan code snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("trinh cac che snippets") or ("hang luan code snippets"))) or ("locating bug code snippets"))*.