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