Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc mo dan slippers" » "duc m dan slippers", "duc mo danh slippers", "duc moi dan slippers", "duc co dan slippers", "duc mo dan slippery", "duc mo 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 mo 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 mo dan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc mo dan slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc mo dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.