Perhaps you should try some spelling variations:
thanh trung » thanh tung
hieu nganh » vien nganh, hiem ngan, hieu manh
trung tuan » trung thanh, trung tam, tran tuan
tuan khong » toan khong, tuan phong, thuan phong
khong cang » thong cong, hong bang, khong dung
doc hieu » toc thieu, hoc thieu, hoc hien
cang dan » cong dan, tang dan, canh dan
than cap » khan cap, thanh lap, thanh cac
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 nganh - thanh trung tuan khong cang dan ((than cap) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu nganh - thanh trung tuan khong cang dan ((than cap) OR (phan cau)).
• Adding a wildcard symbol may retrieve word variants: doc hieu nganh - thanh trung tuan khong cang dan ((than cap) or (phan cau))*.