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