Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
theo mau » tho mau, theo dau, theo yeu
theo chu » theo chieu, cho chu, chao chu
trinh va » trinh van, trinh vat, trinh ve
cong dan » cong san, cong tan, cong dong
toan cao » toan ban, toan tap
va nang » van nang, da nang, cam nang

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: ((theo mau) OR (theo chu)) sach - hanh trinh va nang ((cong dan) OR (huong dan)) toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo mau) OR (theo chu)) sach - hanh trinh va nang ((cong dan) or (huong dan)) toan cao~".
• Adding a wildcard symbol may retrieve word variants: ((theo mau) OR (theo chu)) sach - hanh trinh va nang ((cong dan) or (huong dan)) toan cao*.