Perhaps you should try some spelling variations:
thanh truong » thanh trung, thanh thuong, thanh tung
truong cao » truong dai
hien manh » hien hanh, hieu manh, hien nhanh
tien manh » tien anh, tien thanh, tieng anh
hang cong » dang cong, hang nong, bang cong
tran tuan » tran xuan, tran quang, tran thanh
cao hang » cao dang, cao tang, cao bang
cong tac » cong ty
tran tap » toan tap, tran tan, trang tai

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 manh) or (tien manh)) - thanh truong cao hang cong tac ((tran tap) OR (tran tuan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien manh) OR (tien manh)) - thanh truong cao hang cong tac ((tran tap) OR (tran tuan))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien manh) or (tien manh)) - thanh truong cao hang cong tac ((tran tap) OR (tran tuan))*".