Perhaps you should try some spelling variations:
"cuong nghe java slippers" » "cong nghe java slippers", "cuong nghi java slippers", "luong nghe java slippers", "cuong nghe va slippers", "cuong ngu java slippers", "cuong nghe java slippery", "cuong nghe 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: (((("cuong nghe 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: (((("cuong nghe java slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuong nghe java slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuong nghe java slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.