Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
hanh trinh » hanh chinh
thanh chau » thanh cha, thanh cham, thanh chu
va phuong » va thuong, cac phuong
hien anh » hien hanh, thien anh, dien anh
cong dan » cong san, cong tan, huong dan
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien anh - ((hanh trinh) or (canh tranh)) va phuong cong dan ((thanh chau) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien anh - ((hanh trinh) OR (canh tranh)) va phuong cong dan ((thanh chau) OR (than cap)).
• Adding a wildcard symbol may retrieve word variants: hoc hien anh - ((hanh trinh) or (canh tranh)) va phuong cong dan ((thanh chau) or (than cap))*.