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