Perhaps you should try some spelling variations:
thanh trung » thanh tung
tuan thuong » than thuong, thanh thuong, phan thuong
toan thuong » toan thong, ton thuong, than thuong
hien anh » hien hanh, thien anh, dien anh
cong dan » cong san, cong tan, huong dan
toan cau » toan cao, toan ban, toan tap
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 hien anh - thanh trung ((tuan thuong) OR (toan thuong)) cong dan ((toan cau) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien anh - thanh trung ((tuan thuong) OR (toan thuong)) cong dan ((toan cau) OR (than cap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien anh - thanh trung ((tuan thuong) OR (toan thuong)) cong dan ((toan cau) or (than cap))".
• Adding a wildcard symbol may retrieve word variants: hoc hien anh - thanh trung ((tuan thuong) OR (toan thuong)) cong dan ((toan cau) or (than cap))*.