Perhaps you should try some spelling variations:
"cong chung code snippets" » "cong chung co snippets", "cong hung code snippets", "cong thuong code snippets", "cong cong code snippets"
"dang java java snippets" » "dang va java snippets"
"locating bug code slippers" » "locating bung code slippers", "locating bugs code slippers"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dang java java snippets") or ("cong chung code snippets"))) or ("locating bug code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang java java snippets") OR ("cong chung code snippets"))) OR ("locating bug code slippers")).
• Removing quotes may allow a broader search: (((( dang java java snippets ) or ( cong chung code snippets ))) or ( locating bug code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("dang java java snippets") or ("cong chung code snippets"))) or ("locating bug code slippers"))*.