Perhaps you should try some spelling variations:
"trinh gian hieu snippets" » "trinh giang hieu snippets", "trinh giao hieu snippets", "trinh giai hieu snippets", "trinh gian viet snippets", "trinh van hieu snippets", "trinh tin hieu snippets", "trinh gian hieu slippers"
"dung bug code snippets" » "dung dung code snippets", "dung hung code snippets", "dung rung code snippets", "dung bug core snippets", "dung bug code slippers"
"locating bug code snippets" » "locating bug core snippets", "locating bug code slippers"

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