Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
tuong cong » truong cong, trong cong, tong cong
thien anh » thien danh, tien anh, thien chanh
chinh va » chinh ta, chinh tai, hanh va
va tuong » va thuong, va thong, xa truong
cong dan » cong san, cong tan, huong dan
dan nhan » danh nhan, dan chan, van nhan
nhan tai » hang tai, van tai, toan tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: (hoan or soan) ((thien anh) OR (thien thanh)) - hanh chinh va tuong cong dan nhan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (hoan OR soan) ((thien anh) OR (thien thanh)) - hanh chinh va tuong cong dan nhan tai.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(hoan or soan) ((thien anh) OR (thien thanh)) - hanh chinh va tuong cong dan nhan tai".
• Adding a wildcard symbol may retrieve word variants: (hoan or soan) ((thien anh) OR (thien thanh)) - hanh chinh va tuong cong dan nhan tai*.