Perhaps you should try some spelling variations:
ngan phuong » doan phuong, van phuong, dan phuong
chieu tinh » lieu tinh, chau tinh, kieu tinh
phuong dan » phuong danh, phuong doan, huong dan
tranh cua » doanh cua, manh cua
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) OR (trieu tinh)) - canh tranh 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) OR (trieu tinh)) - canh tranh cua ngan phuong dan ((phan cac) OR (toan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu tinh) OR (trieu tinh)) - canh tranh cua ngan phuong dan ((phan cac) or (toan cau))".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu tinh) OR (trieu tinh)) - canh tranh cua ngan phuong dan ((phan cac) or (toan cau))*.