Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu xanh » chieu xanh, hieu manh, thien anh
trung tuan » trung thanh, trung tam, tran tuan
tuan dung » tuan duong, tran dung, tan dung
dung cong » dung trong
cong san » cong tac
toan tai » toan tap, doanh tai, toan ban
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 (dieu hanh)) - thanh trung tuan dung cong san ((toan tai) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (dieu hanh)) - thanh trung tuan dung cong san ((toan tai) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (dieu hanh)) - thanh trung tuan dung cong san ((toan tai) or (toan cao))*.