Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
thanh trang » thanh trung, hanh trang, thanh thang
va phuong » va thuong, cac phuong
tan khoan » toan khoan, tai khoan, tao khoang
chi xanh » chi anh, chi danh, chieu xanh
chi hanh » chi nhanh, chi thanh, thi hanh
trang va » tran van, hang va
cong tan » cong tac, cong san, cong thanh
khoan va » doan va, khoa ma, nhan va

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) or (chi hanh)) - thanh trang va phuong cong tan khoan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chi xanh) OR (chi hanh)) - thanh trang va phuong cong tan khoan va.
• Adding a wildcard symbol may retrieve word variants: doi ((chi xanh) or (chi hanh)) - thanh trang va phuong cong tan khoan va*.