Perhaps you should try some spelling variations:
thanh tung » thanh cong
tuong cong » truong cong, trong cong, tong cong
khoan cam » khoa cam, khoan va, phan cam
hien anh » hien hanh, thien anh, dien anh
va tuong » va thuong, va thong, xa truong
cong dan » cong san, cong tan, huong dan
than cao » toan cao, thai cao, than sao
than cap » khan cap, thanh lap, thanh cac
tung va » trung va, tuong va, dung va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien anh - thanh tung va tuong cong dan ((than cao) or (((than cap) or (khoan cam))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien anh - thanh tung va tuong cong dan ((than cao) OR (((than cap) OR (khoan cam)))).
• Adding a wildcard symbol may retrieve word variants: hoc hien anh - thanh tung va tuong cong dan ((than cao) or (((than cap) or (khoan cam))))*.