Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"khoa va tra snippets" » "khoan va tra snippets", "khoa ma tra snippets", "hoa va tra snippets", "khoa va trac snippets", "khoa va tre snippets", "khoa va tro snippets", "khoa va tra 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 va tra snippets") OR ("python using java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( khoa va tra snippets ) or ( python using java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("khoa va tra snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.