Perhaps you should try some spelling variations:
"trinh dan tinh snippets" » "trinh han tinh snippets", "trinh van tinh snippets", "trinh san tinh snippets", "trinh doan tinh snippets", "trinh dang tinh snippets", "trinh dan trinh snippets", "trinh dan tinh slippers"
"dung rung code snippets" » "dung trung code snippets", "duong rung code snippets", "dung ung code snippets", "dung rung code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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 dan tinh snippets") or ("dung rung code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh dan tinh snippets") OR ("dung rung code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh dan tinh snippets ) or ( dung rung code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh dan tinh snippets") or ("dung rung code snippets"))) or ("locating bug code snippets"))*.