Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qua than cao snippets" » "qua thanh cao snippets", "qua phan cao snippets", "qua tan cao snippets", "qua toan cao snippets", "qua thai cao snippets", "qua than cap 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: (((("qua than cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("qua than cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( qua than cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qua than cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.