Perhaps you should try some spelling variations:
"duy thinh java slippers" » "duy trinh java slippers", "duy think java slippers", "duc thinh java slippers", "quy trinh java slippers", "duy khanh java slippers", "duy thinh java slippery", "duy thinh java grippers"
"using java java snippets" » "using data java 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: (((("duy thinh java slippers") or ("using java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duy thinh java slippers") OR ("using java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duy thinh java slippers ) or ( using java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duy thinh java slippers") or ("using java java snippets"))) or ("locating bug code snippets"))*.