Perhaps you should try some spelling variations:
thanh chuong » thanh huong, nhanh chong, thanh hung
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, nhieu tang
cua nhung » va nhung
cong vang » cong lang, cong quang, cong ngang
vang tuan » van tuan, vong tuan, quang tuan
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: ho ((hieu lang) or (hieu qua)) - ((thanh chuong) OR (thanh cong)) cua nhung cong vang tuan cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (hieu qua)) - ((thanh chuong) OR (thanh cong)) cua nhung cong vang tuan cu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu lang) or (hieu qua)) - ((thanh chuong) OR (thanh cong)) cua nhung cong vang tuan cu".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (hieu qua)) - ((thanh chuong) OR (thanh cong)) cua nhung cong vang tuan cu*.