Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh manh » hanh mang, lanh manh, hoang manh
tuong tac » luong tai, tuong lai
ho chieu » theo chieu, hoc thieu, doi chieu
cong tac » cong ty
toan tap » toan ban
manh va » hanh va, anh va, minh va

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 - hanh manh va nhung ((tuong tac) or (cong tac)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh manh va nhung ((tuong tac) OR (cong tac)) toan tap*.