Perhaps you should try some spelling variations:
"can trinh java snippets" » "can tranh java snippets", "dan trinh java snippets", "van trinh java snippets"
"dung nhan code snippets" » "dung luan code snippets", "dung nhan co snippets", "dung nhan 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.

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