Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
dien tinh » diep tinh, bien tinh, dien hinh
trung cap » truong cao, trung tam
hang cong » hang nong, bang cong, thanh cong
dang cong » dung cong
dan toan » van toan, dan than, manh toan
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: co dien tinh - thanh ((trung tuan) or (trung cap)) ((hang cong) or (dang cong)) dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: co dien tinh - thanh ((trung tuan) OR (trung cap)) ((hang cong) OR (dang cong)) dan toan cao.
• Adding a wildcard symbol may retrieve word variants: co dien tinh - thanh ((trung tuan) or (trung cap)) ((hang cong) or (dang cong)) dan toan cao*.