Perhaps you should try some spelling variations:
"dung cuannnt code snippets" » "dung luannnnt code snippets", "dung chonnnt code snippets", "dung cuannnt core snippets"
"dung cua cau snippets" » "dung luan cau snippets", "dung cho cau snippets", "dung chua cau snippets", "dung cua cac snippets", "dung cua chu snippets"
"locating bug code snippets" » "locating bug core snippets", "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: (((("dung cuannnt code snippets") or ("dung cua cau snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung cuannnt code snippets") OR ("dung cua cau snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cuannnt code snippets ) or ( dung cua cau snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cuannnt code snippets") or ("dung cua cau snippets"))) or ("locating bug code snippets"))*.