Perhaps you should try some spelling variations:
thanh trung » thanh tung
cong thanh » dong thanh, cong trinh, cong tan
hien xanh » hien nhanh, chieu xanh, hien khanh
hien hanh » dieu hanh
thanh hoa » thanh pho
cua dong » chua dong, cua cong, cua dang
hoa ban » hoa dan, hoa van, hoa han

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 (hien hanh)) - thanh trung ((cua dong) or (cua ban)) cong thanh hoa ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien hanh)) - thanh trung ((cua dong) OR (cua ban)) cong thanh hoa ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (hien hanh)) - thanh trung ((cua dong) or (cua ban)) cong thanh hoa ban*.