Perhaps you should try some spelling variations:
truong tuan » trung tuan, truong quan, truong luan
trong tuan » trong quan, trung tuan, trong tan
cong thanh » dong thanh, cong trinh, cong tan
hieu xanh » chieu xanh, hieu manh, hieu nganh
bang cong » dang cong, bang song, hang cong
thanh van » thanh san, thanh toan, thanh phan
doc hieu » toc thieu, hoc thieu, hoc hien

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu xanh - thanh ((truong tuan) OR (trong tuan)) bang cong thanh van ban~".
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - thanh ((truong tuan) OR (trong tuan)) bang cong thanh van ban*.