Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
hieu nganh » vien nganh, hiem ngan, hieu manh
thanh tung » thanh cong
cac phuong » cac truong
hieu xanh » chieu xanh, hieu manh, dieu hanh
tung cac » dung cac, vung cac, cung cac
cong san » cong tac
san phan » san pham, van phan, sat phan
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu xanh) OR (hieu nganh)) - thanh tung cac phuong cong san phan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu xanh) OR (hieu nganh)) - thanh tung cac phuong cong san phan cau".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu xanh) OR (hieu nganh)) - thanh tung cac phuong cong san phan cau*.