Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"dan trinh java snippets" » "dan tinh java snippets", "van trinh java snippets", "hanh trinh java snippets"
"dung cong cong snippets" » "dung trong cong snippets", "dung cong dong snippets", "dung dang cong snippets"

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

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