Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu xanh » chieu xanh, thien anh, thien danh
hieu manh » chieu xanh, hieu nganh, dieu hanh
trung hoc » trung quoc
hoc trong » hoc thuong, hoc tieng, dot trong
tao khang » tao khoang, tao zhang, dao khang
khang dau » hang dau, phan dau, xang dau
cong tao » cong tac, cong tan, cong bao

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 (hieu manh)) - thanh trung hoc trong cong tao khang dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (hieu manh)) - thanh trung hoc trong cong tao khang dau.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (hieu manh)) - thanh trung hoc trong cong tao khang dau*.