Perhaps you should try some spelling variations:
"huu nghi java slippers" » "huu ngu java slippers", "huu nghi va slippers", "suy nghi java slippers", "hoi nghi java slippers", "huu nghi java slippery", "huu nghi java grippers"
"dung java java snippets" » "dung va 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: (((("huu nghi java slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("huu nghi java slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( huu nghi java slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huu nghi java slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.