Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
trung tuan » trung thanh, trung tam, truong thanh
nhung cong » dung cong, thong cong, hang cong
trinh phan » trinh han, trinh quan, thanh phan
mot chieu » doi chieu, ho chieu
tran tuan » tran xuan, tran quang, tran thanh
phan cau » phan dau, phan cac, phan tu

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 (mot chieu)) sach - thanh ((trung tuan) OR (tran tuan)) nhung cong trinh phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (mot chieu)) sach - thanh ((trung tuan) OR (tran tuan)) nhung cong trinh phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (mot chieu)) sach - thanh ((trung tuan) OR (tran tuan)) nhung cong trinh phan cau".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (mot chieu)) sach - thanh ((trung tuan) OR (tran tuan)) nhung cong trinh phan cau*.