Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
phan xuong » phan cong
xuong tinh » duong tinh, khuong tinh, truong tinh
trung cap » truong cao, trung tam
thanh lap » thanh san, phan lap, thanh hai
cap phan » cac phan, cao phan, cap han
than cap » khan cap, thanh cac, than cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - thanh trung cap phan xuong tinh ((than cap) or (thanh lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - thanh trung cap phan xuong tinh ((than cap) OR (thanh lap)).
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - thanh trung cap phan xuong tinh ((than cap) or (thanh lap))*.