Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
thanh tung » thanh cong
thien anh » thien danh, tien anh, thien chanh
cua trong » cua truong, cua trung, qua trong
tung cua » trung cua, tuong cua, dung cua
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
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 anh) OR (thien thanh)) - thanh tung cua trong cong tac than cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thien anh) OR (thien thanh)) - thanh tung cua trong cong tac than cap".
• Adding a wildcard symbol may retrieve word variants: hoc ((thien anh) OR (thien thanh)) - thanh tung cua trong cong tac than cap*.