Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
thanh trung » thanh tung
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
tam dung » tam duong, tan dung, am dung
tac dung » sach dung, xay dung, tin dung
toan ban » van ban

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 thanh) or (tieng anh)) - thanh trung ((tam dung) or (tac dung)) cong manh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien thanh) OR (tieng anh)) - thanh trung ((tam dung) OR (tac dung)) cong manh toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((thien thanh) or (tieng anh)) - thanh trung ((tam dung) or (tac dung)) cong manh toan ban*.