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