Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
trung dieu » trong dieu, trung hieu, truong dien
dieu tuong » dieu duong, bieu tuong, diem tuong
tuong cong » truong cong, trong cong, tong cong
toan khoan » toan khoa, toan phan, tuan hoan
toan hoat » toan khoa, toan hoc, toan ho
ho chieu » theo chieu, hoc thieu, doi chieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - sinh trung dieu tuong cong ((toan khoan) OR (toan hoat)) cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - sinh trung dieu tuong cong ((toan khoan) OR (toan hoat)) cap".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - sinh trung dieu tuong cong ((toan khoan) OR (toan hoat)) cap*.