Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
van thuong » va thuong, van chuong, van phuong
trinh van » trinh han, trinh quan, trinh toan
phong van » thong van, phong va, hong van
ban tap » bai tap, han tap, ban tai
dong » cong, dung
trieu » thieu, trien, tieu

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: dong trieu tinh - hanh trinh van thuong ((phung van) OR (phong van)) ban tap~.
• Adding a wildcard symbol may retrieve word variants: dong trieu tinh - hanh trinh van thuong ((phung van) or (phong van)) ban tap*.