Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tinh » thanh binh, nhanh tinh, than kinh
thong cong » trong cong, tong cong, phong chong
ho chieu » theo chieu, hoc thieu, doi chieu
tac hanh » tac thanh, tac danh, sac hanh
hanh cap » hanh cac, hanh cat, hanh cad

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