Perhaps you should try some spelling variations:
doan thien » hoan thien, doan thi, toan thiet
thien anh » thien danh, tien anh, thien thanh
hanh hanh » hanh han, xanh hanh, nhanh thanh
va trong » va truong, va thong, va tuong
cong dan » cong san, cong tan, huong dan
toan ban » van ban
hanh va » hang va, hanh vi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doan thien anh - hanh hanh va trong cong dan ((toan tap) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doan thien anh - hanh hanh va trong cong dan ((toan tap) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: doan thien anh - hanh hanh va trong cong dan ((toan tap) OR (toan ban))*.