Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"khoa doi su snippets" » "hoa doi su snippets", "khoa hoi su snippets", "khoa noi su snippets", "khoa oi su snippets", "khoa don su snippets", "khoa voi su snippets", "khoa doi su slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoa doi su snippets") OR ("python using java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( khoa doi su snippets ) or ( python using java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("khoa doi su snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.