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