Perhaps you should try some spelling variations:
"dung luan cham snippets" » "dung luan chat snippets", "dung luan chi snippets", "dung luan phan snippets"
"dung uong java snippets" » "dung huong java snippets", "dung luong java snippets", "dung cong java snippets", "dung using java snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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 luan cham snippets") or ("dung uong java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung luan cham snippets") OR ("dung uong java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung luan cham snippets ) or ( dung uong java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung luan cham snippets") or ("dung uong java snippets"))) or ("locating bug code snippets"))*.