Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
chieu sach » chinh sach, chieu sang, chieu xanh
phuong dan » phuong danh, phuong doan, huong dan
trang cua » tang cua, trung cua, thang cua
tranh cua » doanh cua, manh cua
dan toan » van toan, dan than, manh toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu sach) or (chiet tach)) - hanh ((trang cua) OR (tranh cua)) nhung phuong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (chiet tach)) - hanh ((trang cua) OR (tranh cua)) nhung phuong dan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu sach) or (chiet tach)) - hanh ((trang cua) OR (tranh cua)) nhung phuong dan toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) or (chiet tach)) - hanh ((trang cua) OR (tranh cua)) nhung phuong dan toan ban*.