Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam van den snippets" » "nam dan den snippets", "nam va den snippets", "pham van den snippets", "nam van de snippets", "nam van der snippets", "nam ban den snippets"
"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 van den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nam van den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam van den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam van den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.