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