Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
thoan tran » hoan tran, tan tran, hoang tran
theo phap » thi phap
phap sinh » phau sinh, phai sinh, phap tinh
toan tran » tan tran, hoan tran, toan trac
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 tran) OR (thoan tran)) phuong cong ((van toan) or (ban hanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo phap sinh - thanh ((toan tran) OR (thoan tran)) phuong cong ((van toan) OR (ban hanh)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo phap sinh - thanh ((toan tran) OR (thoan tran)) phuong cong ((van toan) or (ban hanh)) cau".
• Adding a wildcard symbol may retrieve word variants: theo phap sinh - thanh ((toan tran) OR (thoan tran)) phuong cong ((van toan) or (ban hanh)) cau*.