Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
thien ke » thiet ke
trang va » tran van, hang va
va thong » va thuong, va phuong, he thong
cong dan » cong san, cong tan, cong dong
cong tac » cong ty
toan cao » toan ban, toan tap
ke lang » ke mang, ke nang, ke bang

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

• Performing a fuzzy search may retrieve terms with similar spellings: thien ke lang - hanh trang va thong ((((cong dan) or (huong dan))) or (cong tac)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thien ke lang - hanh trang va thong ((((cong dan) OR (huong dan))) OR (cong tac)) toan cao.
• Adding a wildcard symbol may retrieve word variants: thien ke lang - hanh trang va thong ((((cong dan) or (huong dan))) or (cong tac)) toan cao*.