Perhaps you should try some spelling variations:
"cong hung code snippets" » "cong chung code snippets", "cong huong code snippets", "cong dung code snippets", "cong hung code slippers"
"lap trinh java snippets" » "lap trinh java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lap trinh java snippets") OR ("cong hung code snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( lap trinh java snippets ) or ( cong hung code snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("lap trinh java snippets") or ("cong hung code snippets"))) or ("locating bug code snippets"))*.