Perhaps you should try some spelling variations:
"danh nhan vat snippets" » "doanh nhan vat snippets", "thanh nhan vat snippets", "benh nhan vat snippets", "danh nhan va snippets", "danh nhan tai snippets", "danh nhan dan snippets", "danh nhan vat 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: (((("danh nhan vat snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("danh nhan vat snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh nhan vat snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh nhan vat snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.