Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doan cap dan slippers" » "doanh cao dan slippers", "dan ca dan slippers", "toan cao dan slippers", "doan cac dan slippers", "doan ca dan slippers", "doan cay dan slippers", "doan cap dan slippery", "doan cap 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: (((("doan cap 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: (((("doan cap dan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doan cap dan slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doan cap dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.