Perhaps you should try some spelling variations:
"dung hieu code snippets" » "dong hieu code snippets", "dung tieu code snippets", "trung hieu code snippets", "dung hieu core snippets"
"trong cac co snippets" » "trong cac cong snippets"
"locating bug code snippets" » "locating bug core 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: (((("trong cac co snippets") or ("dung hieu code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trong cac co snippets") OR ("dung hieu code snippets"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( trong cac co snippets ) or ( dung hieu code snippets ))) or ( locating bug code snippets ))*.