Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
chau tinh » cuu tinh, ha tinh, cua tinh
trinh va » trinh van, trinh vat, trinh ve
va thong » va thuong, va phuong, he thong
cong dan » cong san, cong tan, cong dong
toan cao » toan ban, toan tap
ho chau » ha chau, ho chu, o chau

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: ho chau tinh - hanh trinh va thong ((cong dan) OR (huong dan)) ((van ban) OR (toan cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chau tinh - hanh trinh va thong ((cong dan) OR (huong dan)) ((van ban) or (toan cao))~".
• Adding a wildcard symbol may retrieve word variants: ho chau tinh - hanh trinh va thong ((cong dan) OR (huong dan)) ((van ban) or (toan cao))*.