Perhaps you should try some spelling variations:
"using java java slippers" » "using data java slippers", "using java java slippery", "using java java grippers"
"van cuong ma snippets" » "van chuong ma snippets", "van duong ma snippets", "van cong ma snippets", "van cuong _ snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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 java slippers") or ("van cuong ma snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java java slippers") OR ("van cuong ma snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java java slippers ) or ( van cuong ma snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java java slippers") or ("van cuong ma snippets"))) or ("locating bug code snippets"))*.