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