Perhaps you should try some spelling variations:
"trinh dang tinh snippets" » "trinh dung tinh snippets", "trinh dan tinh snippets", "trinh bang tinh snippets", "trinh dang dinh snippets", "trinh dang sinh snippets", "trinh dang vinh snippets", "trinh dang tinh 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 dang tinh 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 dang tinh snippets") OR ("dung bug code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh dang tinh snippets ) or ( dung bug code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh dang tinh snippets") or ("dung bug code snippets"))) or ("locating bug code snippets"))*.