Perhaps you should try some spelling variations:
thanh trung » thanh tung
khong cong » thong cong, khong cang, chong cong
hoc thieu » toc thieu, hoc hien
trung cua » truong cua, trung tuan, trung cap
cua khong » hua khong, cua phuong, cua thuong
ho chieu » theo chieu, doi chieu, mot chieu
van canh » van anh, van hanh, van manh
dan can » dan chan, dan canh, dan ca

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (hoc thieu)) tinh - thanh trung cua khong cong ((dan can) or (van canh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) tinh - thanh trung cua khong cong ((dan can) OR (van canh)) cau.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) tinh - thanh trung cua khong cong ((dan can) or (van canh)) cau*.