Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"tran manh code snippets" » "tran minh code snippets", "tran thanh code snippets", "tran van code snippets", "tran many core snippets", "tran manh code slippers"
"dung viet code snippets" » "nang viet code snippets", "cong viet code snippets", "mang viet code snippets", "dung viet co snippets", "dung viet some snippets", "dung viet 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 manh code snippets") or ("dung viet code snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tran manh code snippets") OR ("dung viet code snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( tran manh code snippets ) or ( dung viet code snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran manh code snippets") or ("dung viet code snippets"))) or ("locating bugs code snippets"))*.