Perhaps you should try some spelling variations:
"using java code slippers" » "using data code slippers"
"dung lam quang snippets" » "dung lao quang snippets", "dung pham quang snippets", "dung ngam quang snippets", "dung luan quang snippets", "dung tai quang snippets", "dung dat quang 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.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("using java code slippers") or ("dung lam quang snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code slippers") OR ("dung lam quang snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java code slippers ) or ( dung lam quang snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code slippers") or ("dung lam quang snippets"))) or ("locating bug code snippets"))*.