Perhaps you should try some spelling variations:
"cuong thuc dan snippets" » "cong thuc dan snippets", "luong thuc dan snippets", "cuong thu dan snippets", "cuong thuc hanh snippets", "cuong hoc dan snippets", "cuong thuc vat snippets", "cuong thuc dan 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: (((("cuong thuc dan snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuong thuc dan snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuong thuc dan snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuong thuc dan snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.