Perhaps you should try some spelling variations:
"doanh hoan dat snippets" » "doanh doanh dat snippets", "doanh khoa dat snippets", "doanh nhan dat snippets", "doanh hoang dat snippets", "doanh hoa dat snippets", "doanh hon dat snippets", "doanh hoan 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 hoan 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 hoan dat snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doanh hoan dat snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doanh hoan dat snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.