Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
chieu tinh » trieu tinh, lieu tinh, chau tinh
doanh luan » doanh nhan
hoc chieu » hoc thieu, ho chieu, hoc hien
cong van » cong vang, cong san, song van
van tan » van tuan, van ban, van tai
tan tap » toan tap, han tap, tan tat

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: "hoc chieu tinh - hanh ((doanh cua) OR (doanh luan)) phuong cong van tan tap~".
• Adding a wildcard symbol may retrieve word variants: hoc chieu tinh - hanh ((doanh cua) OR (doanh luan)) phuong cong van tan tap*.