Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chau tinh » cuu tinh, ha tinh, cua tinh
hanh manh » hanh mang, lanh manh, hoang manh
dang cong » dung cong
manh cua » doanh cua, ban cua
cua dang » cua cong, cua ban
tac chan » tac chuan, tac chon, tac nhan
tac can » tac van, tac quan, tac vang

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) or (chau tinh)) - hanh manh cua dang cong ((tac chan) OR (tac can)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chau tinh)) - hanh manh cua dang cong ((tac chan) OR (tac can)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (chau tinh)) - hanh manh cua dang cong ((tac chan) OR (tac can)) cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chau tinh)) - hanh manh cua dang cong ((tac chan) OR (tac can)) cau*.