Perhaps you should try some spelling variations:
"dung using java slippers" » "dung ung java slippers", "dung sinh java slippers", "dung uong java slippers", "dung using data slippers", "dung using java slippery", "dung using java grippers"
"ngu va java snippets" » "ngu java java snippets", "ngu van java snippets", "ngu ca java snippets", "nguoi va java snippets"
"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: (((("ngu va java snippets") or ("dung using java slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ngu va java snippets") OR ("dung using java slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ngu va java snippets ) or ( dung using java slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ngu va java snippets") or ("dung using java slippers"))) or ("locating bug code snippets"))*.