Perhaps you should try some spelling variations:
"dung nhan code snippets" » "dung nhan co snippets", "dung nhan con snippets", "dung luan code snippets", "dung nhan code slippers"
"nhap mon code snippets" » "phap mon code snippets", "nhat mon code snippets", "nha mon code snippets", "nhap mon 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: (((("nhap mon code snippets") or ("dung nhan code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhap mon code snippets") OR ("dung nhan code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhap mon code snippets ) or ( dung nhan code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhap mon code snippets") or ("dung nhan code snippets"))) or ("locating bug code snippets"))*.