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