Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, hang cong
trung hoc » trung quoc
cong ban » cong bang, cong san, cong tan
ban khan » ban than, ban nhan, ban chan
tung ho » tuong ho, trung hoa, tong hop
khan ap » khan cap, han ap, khan dam

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu xanh - thanh ((tung ho) OR (trung hoc)) nhung cong ban khan ap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - thanh ((tung ho) OR (trung hoc)) nhung cong ban khan ap".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - thanh ((tung ho) OR (trung hoc)) nhung cong ban khan ap*.