Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua toan chi snippets" » "cuu toan chi snippets", "xuan toan chi snippets", "cua thanh chi snippets", "cua toan cao snippets", "cua tai chi snippets", "cua luan chi 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: (((("cua toan chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua toan chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua toan chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua toan chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.