Perhaps you should try some spelling variations:
phuong doan » phuong loan, phuong hoang, huong dan
chieu sach » chinh sach, chiet tach, chieu sang
hanh dong » ha dong
cho nhung » cho chuong, thi nhung, cho hang
cua nhung » va nhung
doan than » dan than, doan tuan, doan phan
ho chieu » theo chieu, hoc thieu, doi chieu
anh dong » anh huong, anh son
than cau » toan cau, phan cau, than cap

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: ho chieu sach - ((hanh dong) OR (anh dong)) ((cho nhung) OR (cua nhung)) phuong doan than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - ((hanh dong) or (anh dong)) ((cho nhung) OR (cua nhung)) phuong doan than cau~".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((hanh dong) or (anh dong)) ((cho nhung) OR (cua nhung)) phuong doan than cau*.