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