Perhaps you should try some spelling variations:
"tuan anh cosh snippets" » "tuan anh code snippets", "tuan anh co snippets", "tuan anh cong snippets", "tuan han cosh snippets", "quan anh cosh snippets", "tran anh cosh snippets", "luan anh cosh snippets"
"locating bug core snippets" » "locating bug code snippets"
"dung java java snippets" » "dung va java snippets"

Try widening your search to All Fields.

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 ("tuan anh cosh snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("tuan anh cosh snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( tuan anh cosh snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("tuan anh cosh snippets"))) or ("locating bug core snippets"))*.