Perhaps you should try some spelling variations:
"dung using data snippets" » "dung ung data snippets", "dung sinh data snippets", "dung uong data snippets", "dung using java snippets", "dung using sat snippets", "dung missing data snippets", "dung using data slippers"
"trinh hap dan snippets" » "trinh phap dan snippets", "trinh nhap dan snippets", "trinh han dan snippets", "trinh hat dan snippets", "trinh hai dan snippets", "trinh ham dan snippets", "trinh hap dan slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh hap dan snippets") OR ("dung using data snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( trinh hap dan snippets ) or ( dung using data snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("trinh hap dan snippets") or ("dung using data snippets"))) or ("locating bug code snippets"))*.