Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
hanh tranh » hanh trinh, hanh trang, lanh tranh
phuong dan » phuong danh, phuong doan, huong dan
tieu tinh » trieu tinh, tieu trinh, lieu tinh
than cau » phan cau, than cap, thanh chau
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: theo tieu tinh - ((hanh tranh) or (canh tranh)) va nhung phuong dan ((than cau) OR (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu tinh - ((hanh tranh) OR (canh tranh)) va nhung phuong dan ((than cau) OR (toan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu tinh - ((hanh tranh) or (canh tranh)) va nhung phuong dan ((than cau) OR (toan cau))".
• Adding a wildcard symbol may retrieve word variants: theo tieu tinh - ((hanh tranh) or (canh tranh)) va nhung phuong dan ((than cau) OR (toan cau))*.