Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
truong cua » truong ca, truong quan, truong cao
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, nhieu tang
trung cua » trung tuan, trung cap, dung cua
ban thanh » ban hanh, ban hang
thanh bac » nhanh bac, thanh bai, thanh san
cong ban » cong bang, cong san, cong tan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu lang) or (chieu xanh)) - hanh ((trung cua) OR (truong cua)) nhung cong ban thanh bac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu lang) OR (chieu xanh)) - hanh ((trung cua) OR (truong cua)) nhung cong ban thanh bac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu lang) or (chieu xanh)) - hanh ((trung cua) OR (truong cua)) nhung cong ban thanh bac".
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu lang) or (chieu xanh)) - hanh ((trung cua) OR (truong cua)) nhung cong ban thanh bac*.