Perhaps you should try some spelling variations:
"doanh doanh dat snippets" » "toan doanh dat snippets", "doanh hoan dat snippets", "doanh thanh dat snippets", "doanh doanh bat snippets", "doanh doanh dao snippets", "doanh doanh xuat snippets", "doanh doanh dat slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("doanh doanh dat snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doanh doanh dat snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doanh doanh dat snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doanh doanh dat snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.