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