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