Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hat lieu den snippets" » "vat lieu den snippets", "nhat bieu den snippets", "chat lien den snippets", "hat lieu dien snippets", "hat lieu de snippets", "hat bieu dien 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: (((("hat lieu 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: (((("hat lieu den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hat lieu den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hat lieu den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.