Perhaps you should try some spelling variations:
ngan phuong » doan phuong, van phuong, dan phuong
thanh trung » thanh tung
chieu tinh » trieu tinh, lieu tinh, chau tinh
phuong dan » phuong danh, phuong doan, huong dan
hoc chieu » hoc thieu, ho chieu, hoc hien
trung cua » truong cua, trung tuan, trung cap
cua ngan » cua ban, vu ngan, cua dan
phan cac » nhan cach, phan dau, phan lap
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu tinh - thanh trung cua ngan phuong dan ((phan cac) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu tinh - thanh trung cua ngan phuong dan ((phan cac) OR (toan cau)).
• Adding a wildcard symbol may retrieve word variants: hoc chieu tinh - thanh trung cua ngan phuong dan ((phan cac) or (toan cau))*.