Perhaps you should try some spelling variations:
hanh trinh » hanh chinh
thong cong » trong cong, tong cong, thong thong
thanh chau » thanh cha, thanh cham, thanh chu
hien anh » hien hanh, thien anh, dien anh
va thong » va thuong, va phuong, he thong
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 thong 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 thong cong dan ((thanh chau) OR (than cap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien anh - ((hanh trinh) OR (canh tranh)) va thong cong dan ((thanh chau) or (than cap))".
• Adding a wildcard symbol may retrieve word variants: hoc hien anh - ((hanh trinh) OR (canh tranh)) va thong cong dan ((thanh chau) or (than cap))*.