Perhaps you should try some spelling variations:
"nccnhung cau den snippets" » "nhung cau den snippets", "nccnhung cap den snippets", "nccnhung cau de snippets", "nccnhung hau den snippets", "nccnhuong cau den snippets", "nccnnhung cau den snippets", "nccnchung cau den snippets"
"hung v code snippets" » "huong v code snippets", "nhung v code snippets", "chung v code snippets", "hung v core 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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"nccnhung cau den snippets\") OR (\"hung v code snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( nccnhung cau den snippets ) OR ( hung v code snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("nccnhung cau den snippets") OR ("hung v code snippets"))) OR ("locating bug code snippets"))*.