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