Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qua cai cao snippets" » "qua hai cao snippets", "qua cac cao snippets", "qua ca cao snippets", "qua cai tao snippets", "qua cay cao 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 cai 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 cai cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( qua cai cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qua cai cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.