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