Perhaps you should try some spelling variations:
"dung nccnhung code snippets" » "dung chung code snippets", "dung nhung code snippets", "dung nccnhuong code snippets", "dung nccnnhung code snippets", "dung nccnchung code snippets"
"locating bug core snippets" » "locating bug code snippets"
"hung v code snippets" » "huong v code snippets", "nhung v code snippets", "chung v 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: (((("dung nccnhung code snippets") OR ("hung v code snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"dung nccnhung code snippets\") OR (\"hung v code snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( dung nccnhung code snippets ) OR ( hung v code snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung nccnhung code snippets") OR ("hung v code snippets"))) OR ("locating bug core snippets"))*.