Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc cu dan slippers" » "duc tu dan slippers", "duc cua dan slippers", "duc ca dan slippers", "duc co dan slippers", "duc cu dan slippery", "duc cu dan 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: (((("duc cu dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duc cu dan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc cu dan slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc cu dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.