Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets"
"nguoi dan java slippers" » "nguoi dao java slippers", "nguoi san java slippers", "nguong dan java slippers", "nguoi dan va slippers", "nguoi dan java slippery", "nguoi dan java grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("nguoi dan 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: (((("nguoi dan java slippers") OR ("using java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nguoi dan java slippers ) or ( using java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nguoi dan java slippers") or ("using java java snippets"))) or ("locating bug code snippets"))*.