Perhaps you should try some spelling variations:
"trinh nhan lang snippets" » "trinh han lang snippets", "trinh phan lang snippets", "trinh nha lang snippets", "trinh nhanh lang snippets", "trinh nhan dang snippets", "trinh nhon lang snippets", "trinh nhan lang 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: (((("dung java java snippets") or ("trinh nhan lang snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("trinh nhan lang snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( trinh nhan lang snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("trinh nhan lang snippets"))) or ("locating bug code snippets"))*.