Perhaps you should try some spelling variations:
"den nguoi java slippers" » "den nguoi va slippers", "den ngu java slippers", "den nguoi bana slippers", "dien nguoi java slippers", "dung nguoi java slippers", "con nguoi java slippers", "den nguoi java slippery", "den nguoi 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"

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