Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
theo chu » theo chieu, cho chu, chao chu
ho chieu » theo chieu, hoc thieu, doi chieu
trinh va » trinh van, trinh vat, trinh ve
va thong » va thuong, va phuong, he thong
cong can » cong tan, cong dan, cong cau
cong san » cong tac
thi cao » thai cao, thi hao, thi bao

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 chu) OR (ho chieu)) sach - hanh trinh va thong ((cong can) OR (cong san)) thi cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chu) or (ho chieu)) sach - hanh trinh va thong ((cong can) OR (cong san)) thi cao~".
• Adding a wildcard symbol may retrieve word variants: ((theo chu) or (ho chieu)) sach - hanh trinh va thong ((cong can) OR (cong san)) thi cao*.