Perhaps you should try some spelling variations:
nhung phuong » dung phuong, truong phuong, bang phuong
thanh tuong » thanh thuong, thanh tung, thanh huong
chieu sach » chinh sach, chiet tach, chieu sang
nhu phuong » thu phuong, thi phuong, thu huong
dung chung » dung cong, dung ung, dung trung
doi chieu » doc hieu, doi chi, ho chieu
tuong cua » truong cua, huong cua, thong cua
bac toan » bai toan, bao toan, hach 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 - thanh tuong cua ((((nhung phuong) OR (nhu phuong))) or (dung chung)) bac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh tuong cua ((((nhung phuong) OR (nhu phuong))) OR (dung chung)) bac toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - thanh tuong cua ((((nhung phuong) OR (nhu phuong))) or (dung chung)) bac toan ban".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh tuong cua ((((nhung phuong) OR (nhu phuong))) or (dung chung)) bac toan ban*.