Perhaps you should try some spelling variations:
thuong duong » thuong luong, chuong duong, thong duong
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh tung » thanh cong
hieu lang » chieu sang, hieu quang, nhieu tang
tung cua » trung cua, tuong cua, dung cua
dan khan » dan khanh, dan chan, dan than
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: ho ((chieu xanh) or (hieu lang)) - thanh tung cua ((thuong duong) OR (tuong duong)) dan khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (hieu lang)) - thanh tung cua ((thuong duong) OR (tuong duong)) dan khan cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (hieu lang)) - thanh tung cua ((thuong duong) OR (tuong duong)) dan khan cap".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (hieu lang)) - thanh tung cua ((thuong duong) OR (tuong duong)) dan khan cap*.