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