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