Perhaps you should try some spelling variations:
phuong danh » phuong anh, phuong dinh, phuong thanh
phuong hanh » phuong thanh, phuong anh, phuong hoang
chieu sach » chinh sach, chiet tach, chieu sang
hieu lang » chieu sang, hieu quang, nhieu tang
phan dang » phan dau, phan cong, nhan dan
dang cua » dung cua, dong cua, mang cua
cua nhua » cua nha, cua nhung, cua chu
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sach) or (hieu lang)) - phan dang cua nhua ((phuong danh) OR (phuong hanh)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (hieu lang)) - phan dang cua nhua ((phuong danh) OR (phuong hanh)) toan cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sach) or (hieu lang)) - phan dang cua nhua ((phuong danh) OR (phuong hanh)) toan cao*".