Perhaps you should try some spelling variations:
"dung dat code snippets" » "dung rate code snippets", "dung dat de snippets", "dung va code snippets", "dung tai code snippets", "dung dat code slippers"
"trinh dung luan snippets" » "trinh dung quan snippets", "trinh dung lan snippets", "trinh dung luan 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 dung luan snippets") or ("dung dat code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh dung luan snippets") OR ("dung dat code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh dung luan snippets ) or ( dung dat code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh dung luan snippets") or ("dung dat code snippets"))) or ("locating bug code snippets"))*.