Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
minh dinh » minh danh, binh dinh, hinh dinh
thi minh » chi minh, thi hanh, thi bich
don gian » dan gian
trinh su » trinh tu, trinh san, trinh cau
hoc giao » hoc cao
tu hanh » du hanh, lu hanh, thuc hanh

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( thi minh dinh so - don gian ) OR ( tu hanh trinh su - hoc giao ))~.
• Adding a wildcard symbol may retrieve word variants: (( thi minh dinh so - don gian ) or ( tu hanh trinh su - hoc giao ))*.