Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lei su cau snippets" » "lai su cau snippets", "lei wu cau snippets", "lei cu cau snippets", "lei su cao snippets", "lei su can 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: (((("lei su cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lei su cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lei su cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lei su cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.