Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chieu sang, chieu xanh
thanh toan » thanh hoa, thanh san, tinh toan
trung cua » truong cua, trung tuan, trung cap
nong cong » cong cong, tong cong, nang cong
hach toan » manh toan
cua nong » cua cong, cuu nong, cua dong

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chiet tach) or (chieu sach)) - thanh trung cua nong cong ((hach toan) OR (thanh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chiet tach) OR (chieu sach)) - thanh trung cua nong cong ((hach toan) OR (thanh toan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chiet tach) or (chieu sach)) - thanh trung cua nong cong ((hach toan) OR (thanh toan)) cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chiet tach) or (chieu sach)) - thanh trung cua nong cong ((hach toan) OR (thanh toan)) cau*.