Perhaps you should try some spelling variations:
"trong duan cong snippets" » "trong duan code snippets", "trong quan cong snippets", "trong dan cong snippets", "trong tuan cong snippets", "trong luan cong snippets", "trong duong cong snippets", "trong xuan cuong snippets"
"locating bug core snippets" » "locating bug code snippets"
"dung java java snippets" » "dung va java 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 java java snippets") or ("trong duan cong snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("trong duan cong snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( trong duan cong snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("trong duan cong snippets"))) or ("locating bug core snippets"))*.