Perhaps you should try some spelling variations:
thanh trung » thanh tung
duong trong » dung trong
vien thanh » viet thanh, tien thanh, dien thanh
hieu xanh » chieu xanh, hieu manh, hieu nganh
trung cua » truong cua, trung tuan, trung cap
cua duong » cua dong, cua huong, qua duong
cac toan » cac khoan, hach toan, cac thanh
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu xanh) or (vien thanh)) - thanh trung cua duong trong cac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (vien thanh)) - thanh trung cua duong trong cac toan ban.
• Adding a wildcard symbol may retrieve word variants: doc ((hieu xanh) or (vien thanh)) - thanh trung cua duong trong cac toan ban*.