Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"o viet cau snippets" » "o viet chau snippets", "o viet ca snippets", "o viet chu snippets", "so viet cau snippets", "hoc viet cau snippets"
"locating bug code snippets" » "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: (((("python using java snippets") OR ("o viet cau snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( o viet cau snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("o viet cau snippets"))) or ("locating bug code snippets"))*.