Perhaps you should try some spelling variations:
truong cao » truong dai
tong tuong » trong tuong, tuong tuong, tong thuong
hien hanh » dieu hanh
trung cap » trung tam
tuong dan » huong dan, tung dan, xuong dan
dien anh » tieng anh, dien dan
dan than » dan chan, ban than, van than
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 ((dien anh) or (hien hanh)) - thanh ((trung cap) OR (truong cao)) tong tuong dan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((dien anh) OR (hien hanh)) - thanh ((trung cap) OR (truong cao)) tong tuong dan than cap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((dien anh) or (hien hanh)) - thanh ((trung cap) OR (truong cao)) tong tuong dan than cap*".