Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh tang » hanh trang, anh tang, hanh mang
cua nhung » va nhung
vinh toan » tinh toan, minh toan, vinh tran
hinh toan » tinh toan, thanh toan, trinh toan
theo kha » theo phap, thao khoa, theo chu
kha nang » phap nang, ky nang, ki nang
tang cua » mang cua, hang cua, tang luan

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: "theo kha nang - hanh tang cua nhung cong ((vinh toan) OR (hinh toan)) cau~".
• Adding a wildcard symbol may retrieve word variants: theo kha nang - hanh tang cua nhung cong ((vinh toan) OR (hinh toan)) cau*.