Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dong cua cao snippets" » "dung cua cao snippets", "cong cua cao snippets", "huong cua cao snippets", "dong cua cac snippets", "dong cu cao snippets", "dong cua cay 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 cao 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 cao snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong cua cao snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong cua cao snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.