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