Perhaps you should try some spelling variations:
thanh trung » thanh tung
phuong thuc » thuong thuc
hieu nganh » vien nganh, hiem ngan, nghiep nganh
nhung dong » nhung don, nhung cong, nhung dung
hieu manh » chieu xanh, dieu hanh, hien hanh
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
dong bang » dong san

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu manh) or (hieu nganh)) - thanh trung cua nhung dong bang ((phuong thuc) or (huong dan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (hieu nganh)) - thanh trung cua nhung dong bang ((phuong thuc) OR (huong dan)).
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (hieu nganh)) - thanh trung cua nhung dong bang ((phuong thuc) or (huong dan))*.