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