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