Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hieu lang » chieu sang, hieu quang, nhieu tang
hanh bang » hanh mang, lanh bang, hanh trang
cua thong » cua thuong, cua khong, cua tong
cong nhan » cong nhat, cong thanh, cong san
nhan tuan » nhan luan, than tuan, thanh tuan
anh bang » anh hoang, anh quang, tinh bang
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 (trieu tinh)) - ((hanh bang) or (anh bang)) cua thong cong nhan tuan cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((hieu lang) OR (trieu tinh)) - ((hanh bang) OR (anh bang)) cua thong cong nhan tuan cu.
• Adding a wildcard symbol may retrieve word variants: doi ((hieu lang) or (trieu tinh)) - ((hanh bang) or (anh bang)) cua thong cong nhan tuan cu*.