Perhaps you should try some spelling variations:
"trinh chao vinh snippets" » "trinh chat vinh snippets", "trinh han vinh snippets", "trinh co vinh snippets", "trinh pho vinh snippets", "trinh chau tinh snippets", "trinh pham vinh snippets", "trinh chao vinh 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 chao vinh 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 chao vinh snippets") OR ("dung bug code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh chao vinh snippets ) or ( dung bug code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh chao vinh snippets") or ("dung bug code snippets"))) or ("locating bug code snippets"))*.