Perhaps you should try some spelling variations:
"trinh minh dan snippets" » "trinh kinh dan snippets", "trinh dinh dan snippets", "trinh sinh dan snippets", "trinh minh danh snippets", "trinh minh doan snippets", "trinh binh dan snippets", "trinh minh dan slippers"
"dung dung code snippets" » "duong dung code snippets", "ung dung code snippets", "dung ung code snippets", "dung dung cong snippets", "dung dung co snippets", "dung dung de snippets", "dung dung code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("trinh minh dan snippets") or ("dung dung code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh minh dan snippets") OR ("dung dung code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh minh dan snippets ) or ( dung dung code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh minh dan snippets") or ("dung dung code snippets"))) or ("locating bug code snippets"))*.