Perhaps you should try some spelling variations:
"trinh toan dieu snippets" » "tinh toan dieu snippets", "thanh toan dieu snippets", "trinh han dieu snippets", "trinh toan dien snippets", "trinh doan dieu snippets", "trinh than dieu snippets", "trinh toan dieu slippers"
"dung bug code snippets" » "dung dung code snippets", "dung hung code snippets", "dung rung code snippets", "dung bug code slippers", "dung bug core snippets"
"locating bug code snippets" » "locating bug code slippers", "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: (((("trinh toan dieu snippets") or ("dung bug code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh toan dieu snippets") OR ("dung bug code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh toan dieu snippets ) or ( dung bug code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh toan dieu snippets") or ("dung bug code snippets"))) or ("locating bug code snippets"))*.