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