Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
hieu quang » thieu quang, hieu quan, hieu qua
thanh tung » thanh cong
cua phuong » cuu phuong, cuc phuong, luan phuong
tung cua » trung cua, tuong cua, dung cua
dung anh » dung danh, duong anh, hung anh
dong anh » hong anh, dong thanh, hoang anh
tuan cu » tuan tu, quan cua, tuan thu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu sang) or (hieu quang)) - thanh tung cua phuong ((dung anh) OR (dong anh)) tuan cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu sang) OR (hieu quang)) - thanh tung cua phuong ((dung anh) OR (dong anh)) tuan cu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu sang) or (hieu quang)) - thanh tung cua phuong ((dung anh) OR (dong anh)) tuan cu".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu sang) or (hieu quang)) - thanh tung cua phuong ((dung anh) OR (dong anh)) tuan cu*.