Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
nhanh tinh » nhanh thanh, hanh trinh, nhan sinh
san nhanh » san thanh, nhan nhanh, ban hanh
nhanh cau » nhanh cay, thanh chau, nhanh ha
cua rung » cua trung, cua rang, cua truong
cua dang » cua cong, cua ban
cong san » cong tac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu sach) OR (chieu sang)) - nhanh tinh ((cua rung) or (cua dang)) cong san nhanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (chieu sang)) - nhanh tinh ((cua rung) OR (cua dang)) cong san nhanh cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu sach) OR (chieu sang)) - nhanh tinh ((cua rung) or (cua dang)) cong san nhanh cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) OR (chieu sang)) - nhanh tinh ((cua rung) or (cua dang)) cong san nhanh cau*.