Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lieu mot den snippets" » "hieu mot den snippets", "lieu moc den snippets", "thieu mot den snippets", "lieu moi den snippets", "lieu mot de snippets", "lieu mot nen 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: (((("lieu mot 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: (((("lieu mot den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lieu mot den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lieu mot den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.