Perhaps you should try some spelling variations:
"dang java java snippets" » "dang va java snippets"
"dung nam code snippets" » "dong nam code snippets", "dung lam code snippets", "sung nam code snippets", "dung nam co snippets", "dung lbm code snippets", "dung nam de snippets"
"locating bug code slippers" » "locating bung code slippers", "locating bugs code slippers"

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: (((("dang java java snippets") or ("dung nam 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 ("dung nam code snippets"))) OR ("locating bug code slippers")).
• Removing quotes may allow a broader search: (((( dang java java snippets ) or ( dung nam code snippets ))) or ( locating bug code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("dang java java snippets") or ("dung nam code snippets"))) or ("locating bug code slippers"))*.