Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, hang cong
manh toan » thanh toan, anh tuan, tinh toan
ho chieu » theo chieu, hoc thieu, doi chieu
dung cua » dung luan, dung cho
van than » van thanh, van thang, van tuan

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - hanh ((dung cua) OR (trung tuan)) nhung cong ((manh toan) OR (van than)) cau~.
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - hanh ((dung cua) or (trung tuan)) nhung cong ((manh toan) or (van than)) cau*.