Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
cong toan » cong tuan, cong doan, bong toan
cong hoan » cong hoa, dong hoa, cong san
chi xanh » chi anh, chi danh, chi hanh
trang va » tran van, hang va
va thong » va thuong, va phuong, he thong
cong tan » cong tac, cong san, cong thanh
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi xanh - hanh trang va thong ((((cong toan) OR (cong hoan))) or (cong tan)) phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - hanh trang va thong ((((cong toan) OR (cong hoan))) OR (cong tan)) phan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi xanh - hanh trang va thong ((((cong toan) OR (cong hoan))) or (cong tan)) phan tu".
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - hanh trang va thong ((((cong toan) OR (cong hoan))) or (cong tan)) phan tu*.