Perhaps you should try some spelling variations:
"trinh mach vanh snippets" » "tinh mach vanh snippets", "trinh lich vanh snippets", "trinh minh vanh snippets", "trinh sach danh snippets", "trinh bach van snippets", "trinh cach van snippets", "trinh mach vanh 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 mach vanh 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 mach vanh snippets") OR ("dung dung code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh mach vanh snippets ) or ( dung dung code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh mach vanh snippets") or ("dung dung code snippets"))) or ("locating bug code snippets"))*.