Perhaps you should try some spelling variations:
phuong doan » phuong loan, phuong hoang, huong dan
truong cao » truong dai
trung cua » truong cua, trung tuan, trung cap
doan than » dan than, doan tuan, doan phan
chi xanh » chi anh, chi danh, chi hanh
than cau » toan cau, phan cau, than cap
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi xanh - hanh ((trung cua) or (truong cao)) bang phuong doan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - hanh ((trung cua) OR (truong cao)) bang phuong doan than cau.
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - hanh ((trung cua) or (truong cao)) bang phuong doan than cau*.