Perhaps you should try some spelling variations:
"using java code slippers" » "using data code slippers"
"duc cac dung snippets" » "duc cach dung snippets", "duc cac duong snippets", "duc tac dung snippets", "duoc cac dung snippets", "tuc cac dung snippets", "muc cac dung snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets"

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