Perhaps you should try some spelling variations:
nhung huong » nhung phuong, nhung tuong, nhung cong
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
trung cap » truong cao, trung tam
manh cua » doanh cua, ban 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: doi chieu sach - hanh ((trung cap) or (manh cua)) nhung huong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh ((trung cap) OR (manh cua)) nhung huong dan toan ban*.