Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
trung quan » truong quan, trong quan, trung tuan
hung muong » hung vuong, hung cuong, hung luong
muong bang » cuong bang, muong sang, tuong bang
quan hung » quang hung, quan nhung, luan hung
bang khan » bang nhan, bang thanh, dang khanh
khan cap » khan ap, than cap, khoan cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu sang) or (chieu xanh)) - thanh trung quan hung muong bang khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sang) OR (chieu xanh)) - thanh trung quan hung muong bang khan cap.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sang) or (chieu xanh)) - thanh trung quan hung muong bang khan cap*.