Perhaps you should try some spelling variations:
thanh truong » thanh trung, thanh thuong, thanh tung
tien thanh » tien thinh, tran thanh, den thanh
truong dao » truong dai, truong cao, truong bo
khung cong » nhung cong, khung long, phung cong
hien xanh » hien hanh, hien nhanh, chieu xanh
dao khung » dai khung, dam khung, dao khang
cong tac » cong ty
than cap » thanh lap, thanh cac, than cua
khan cap » khan ap, khoan cam, phan 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 xanh) or (tien thanh)) - thanh truong dao khung cong tac ((than cap) OR (khan cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (tien thanh)) - thanh truong dao khung cong tac ((than cap) OR (khan cap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) or (tien thanh)) - thanh truong dao khung cong tac ((than cap) OR (khan cap))".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (tien thanh)) - thanh truong dao khung cong tac ((than cap) OR (khan cap))*.