Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qua hanh cat snippets" » "quan hanh cat snippets", "qua thanh cat snippets", "qua danh cat snippets", "qua hanh cac snippets", "qua hanh luat snippets", "qua nhanh cay 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 hanh cat 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 hanh cat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( qua hanh cat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qua hanh cat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.