Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung san tra slippers" » "dong san tra slippers", "dung sai tra slippers", "dung luan tra slippers", "dung dan tra slippers", "dung van tra slippers", "dung tan tran slippers", "dung san tra slippery", "dung san tra 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 san tra 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 san tra slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung san tra slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung san tra slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.