Perhaps you should try some spelling variations:
nhung chong » nhung cong, nhung phong, nhung phuong
thanh toan » thanh hoa, thanh san, tinh toan
phung cong » nhung cong, phong cong, dung cong
theo phap » thi phap
phap sinh » phau sinh, phai sinh, phap tinh
toan tuan » tran tuan, toan quan, doan tuan
van toan » van tuan, van tan, van thanh
ban hanh » ban hang

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo phap sinh - thanh toan tuan ((phung cong) OR (nhung chong)) ((van toan) or (ban hanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo phap sinh - thanh toan tuan ((phung cong) OR (nhung chong)) ((van toan) OR (ban hanh)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo phap sinh - thanh toan tuan ((phung cong) OR (nhung chong)) ((van toan) or (ban hanh)) cau".
• Adding a wildcard symbol may retrieve word variants: theo phap sinh - thanh toan tuan ((phung cong) OR (nhung chong)) ((van toan) or (ban hanh)) cau*.