Perhaps you should try some spelling variations:
"dung doanh code snippets" » "dung dan code snippets", "dung dong code snippets", "dung doanh co snippets"
"trinh a model snippets" » "trinh va model snippets", "trinh da model snippets", "trinh ha model 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.

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