Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tinh » thanh binh, than kinh, hanh trinh
nhanh tinh » nhanh thanh, hanh trinh
thong cong » trong cong, tong cong, thong thong
cua thong » cua thuong, cua khong, cua tong
ho chieu » theo chieu, hoc thieu, doi chieu
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
than cap » khan cap, thanh lap, thanh cac

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