Perhaps you should try some spelling variations:
trien quang » tran quang, tuyen quang, dien quang
thanh trung » thanh tung
phuong cong » phuong dong, phong cong, phung cong
cua phuong » cuu phuong, cuc phuong, luan phuong
thien van » thi van
trung cua » truong cua, trung tuan, trung cap
cong ban » cong bang, cong san, cong tan
ban than » ban thanh, van thanh, ban hang
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thien van) or (trien quang)) - thanh trung cua phuong cong ban than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien van) OR (trien quang)) - thanh trung cua phuong cong ban than cap.
• Adding a wildcard symbol may retrieve word variants: hoc ((thien van) or (trien quang)) - thanh trung cua phuong cong ban than cap*.