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