Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung cho hung slippers" » "dung cho nhung slippers", "dung cho huong slippers", "dung cho hang slippers", "dung cho hung slippery", "dung cho hung 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: (((("dung cho hung slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung cho hung slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cho hung slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cho hung slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.