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