Perhaps you should try some spelling variations:
"dung danh dau snippets" » "dung doanh dau snippets", "dung dan dau snippets", "dung dang dau snippets", "dung lanh dao snippets", "dung hang dau snippets", "dung xang dau snippets", "dung danh dau slippers"
"anh java java snippets" » "anh va java snippets", "anh java java slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("anh java java snippets") or ("dung danh dau snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("anh java java snippets") OR ("dung danh dau snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh java java snippets ) or ( dung danh dau snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh java java snippets") or ("dung danh dau snippets"))) or ("locating bug code snippets"))*.