Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
tuan thanh » thuan thanh, quan thanh, tran thanh
theo hieu » theo chieu, theo tieu, thien hieu
hieu lang » chieu sang, hieu quang, nhieu tang
hanh tang » hanh trang, anh tang, hanh mang
nhan dang » nhan dan, phan dang, tran dang
cua thong » cua thuong, cua khong, cua tong
cong tuan » cong tan, cong luan, cong thanh
thanh lap » thanh san, phan lap, thanh hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo hieu lang - ((hanh tang) or (nhan dang)) cua thong cong tuan thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo hieu lang - ((hanh tang) OR (nhan dang)) cua thong cong tuan thanh lap*.