Perhaps you should try some spelling variations:
nhanh thang » nhanh thanh, hanh trang, nhanh chong
theo chieu » theo tieu, theo chu, thi chieu
cong cong » cong dong, trong cong, dung cong
trinh can » trinh han, trinh san, trinh cau
ho chieu » hoc thieu, doi chieu, mot chieu
can cau » van cau, ban cau, ca cau

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

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