Perhaps you should try some spelling variations:
"dung trong code snippets" » "dung trong cong snippets", "dung trong co snippets", "dung trong che snippets", "dung trong code slippers"
"sung nam code snippets" » "quang nam code snippets", "dong nam code snippets", "sung nam co snippets", "sung lbm code snippets", "sung nam de snippets", "sung nam 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: (((("dung trong code snippets") or ("sung nam code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung trong code snippets") OR ("sung nam code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung trong code snippets ) or ( sung nam code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung trong code snippets") or ("sung nam code snippets"))) or ("locating bug code snippets"))*.