Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cum dan cach snippets" » "cum dan cac snippets", "cum dan canh snippets", "cum nhan cach snippets", "cum danh cach snippets", "cua dan cach snippets", "cu dan cach 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: (((("cum dan cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cum dan cach snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cum dan cach snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cum dan cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.