Perhaps you should try some spelling variations:
thanh trung » thanh tung
thien chanh » thien thanh, thien chinh, hien hanh
thien danh » thien anh, thien dang, thien thanh
nhung cong » dung cong, thong cong, hang cong
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
cong tan » cong tac, cong san, cong thanh
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 chanh) or (thien danh)) - thanh trung cua nhung cong tan ((toan tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien chanh) OR (thien danh)) - thanh trung cua nhung cong tan ((toan tap) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc ((thien chanh) or (thien danh)) - thanh trung cua nhung cong tan ((toan tap) or (toan ban))*.