Perhaps you should try some spelling variations:
thanh thuong » thanh huong, thanh chuong, thanh phuong
chieu khong » chien chong, chu khong, chieu duong
khong trong » khoang trong, thong trong, phong trong
thuong cua » huong cua, thong cua, truong cua
hieu lang » chieu sang, hieu quang, nhieu tang
cua khong » hua khong, cua phuong, cua thuong
quan quan » quan quang, quan luan, quang tuan

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 khong)) - thanh thuong cua khong trong ((quan quan) OR (qua quan)) cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu lang) OR (chieu khong)) - thanh thuong cua khong trong ((quan quan) OR (qua quan)) cu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu lang) or (chieu khong)) - thanh thuong cua khong trong ((quan quan) OR (qua quan)) cu*".