Perhaps you should try some spelling variations:
hieu quang » thieu quang, hieu quan, hieu qua
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, nhieu tang, hieu van
trung cua » truong cua, trung tuan, trung cap
hang cua » mang cua, hang ca, huong cua
cong anh » cong danh, dong anh, hong 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: doi ((hieu lang) or (hieu quang)) - hanh ((hang cua) or (trung cua)) nhung cong anh tuan cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((hieu lang) OR (hieu quang)) - hanh ((hang cua) OR (trung cua)) nhung cong anh tuan cu.
• Adding a wildcard symbol may retrieve word variants: doi ((hieu lang) or (hieu quang)) - hanh ((hang cua) or (trung cua)) nhung cong anh tuan cu*.