Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
thanh trung » thanh tung
thieu xanh » chieu xanh, hieu manh, thien danh
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
thien anh » thien danh, tien anh, thien chanh
trung cao » truong cao, trung cap, trung co
dung cong » dung trong
cao dung » cao dang, cao dong, cao ung
toan cau » 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 ((thieu xanh) or (((thien anh) or (thien thanh)))) - thanh trung cao dung cong thanh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (((thien anh) OR (thien thanh)))) - thanh trung cao dung cong thanh toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (((thien anh) or (thien thanh)))) - thanh trung cao dung cong thanh toan cau*.