Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"dung cong code snippets" » "dung trong code snippets", "dung cong cong snippets", "dung cong co snippets", "dung cong che snippets", "dung cong code slippers"
"tran van code snippets" » "luan van code snippets", "tran van de snippets", "tran van hoe snippets", "tran van cong snippets", "tran van code slippers"

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

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