Perhaps you should try some spelling variations:
"dung tnnphang code slippers" » "dung thang code slippers", "dung tnnpphang code slippers", "dung tnnpnhang code slippers", "dung tnnphanhg code slippers"
"han 2 code snippets" » "phan 2 code snippets", "nhan 2 code snippets", "hanh 2 code snippets"
"locating bug code 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: (((("han 2 code snippets") or ("dung tnnphang code slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("han 2 code snippets") OR ("dung tnnphang code slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( han 2 code snippets ) or ( dung tnnphang code slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("han 2 code snippets") or ("dung tnnphang code slippers"))) or ("locating bug code snippets"))*.