Perhaps you should try some spelling variations:
phuong binh » phuong trinh, phuong anh, chuong trinh
phuong hinh » phuong linh, phuong dinh, phuong hanh
hieu sach » chieu sach, hieu cach, dien sach
doc hieu » toc thieu, hoc thieu, hoc hien
nhan dan » phan dau, gian dan, nhan tai
dan cua » dan ca, ban cua, dai cua
cua nhu » cua nhua, cua chu, cua nha

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: doc hieu sach - nhan dan cua nhu ((phuong hinh) OR (phuong binh)) ((toan ban) OR (van ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu sach - nhan dan cua nhu ((phuong hinh) OR (phuong binh)) ((toan ban) or (van ban))~".
• Adding a wildcard symbol may retrieve word variants: doc hieu sach - nhan dan cua nhu ((phuong hinh) OR (phuong binh)) ((toan ban) or (van ban))*.