Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung so cay snippets" » "dung co cay snippets", "dung mo cay snippets", "dung cho cay snippets", "dung so cap snippets", "dung si cay snippets", "dung so cau 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 so cay snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung so cay snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung so cay snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung so cay snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.