Perhaps you should try some spelling variations:
thuong thuat » thuong thuyet, thuong thuc, trong thuat
trung thuat » trong thuat, trung tuan, trung thuc
nhung cong » dung cong, thong cong, hang cong
hien anh » hien hanh, thien anh, tien anh
dien anh » tieng anh, dien dan
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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) OR (dien anh)) - thanh ((trung thuat) or (thuong thuat)) nhung cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien anh) OR (dien anh)) - thanh ((trung thuat) OR (thuong thuat)) nhung cong dan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien anh) OR (dien anh)) - thanh ((trung thuat) or (thuong thuat)) nhung cong dan toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien anh) OR (dien anh)) - thanh ((trung thuat) or (thuong thuat)) nhung cong dan toan cao*.