Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » dung cong, thong cong, hang cong
hoc trieu » hoc thieu, hoc tieu, hoc dieu
tranh cua » doanh cua, manh cua
cua nhung » va nhung
tan toan » tan tran, tap toan, dan toan
van toan » van tuan, van tan, van thanh

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 trieu tinh - hanh tranh cua nhung cong ((tan toan) OR (van toan)) tap~".
• Adding a wildcard symbol may retrieve word variants: hoc trieu tinh - hanh tranh cua nhung cong ((tan toan) OR (van toan)) tap*.