Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc vy dan slippers" » "duc va dan slippers", "duc sy dan slippers", "duc y dan slippers", "duc ky dan slippers", "duc ve dan slippers", "duc vy dan slippery", "duc vy 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 vy 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 vy dan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc vy dan slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc vy dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.