Perhaps you should try some spelling variations:
"trinh dan code snippets" » "trinh han code snippets", "trinh van code snippets", "trinh san code snippets", "trinh dan de snippets"
"dung von code snippets" » "dong von code snippets", "dung cong code snippets", "dung va code snippets", "dung von cong 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: (((("trinh dan code snippets") or ("dung von code snippets"))) or ("locating bug code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh dan code snippets") OR ("dung von code snippets"))) OR ("locating bug code slippers"))*.
• Removing quotes may allow a broader search: (((( trinh dan code snippets ) or ( dung von code snippets ))) or ( locating bug code slippers ))*.