Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
truong cao » truong dai
dang luong » nang luong, dung luong, hang luong
giao thanh » gia thanh, gian thanh, giay thanh
trung cua » truong cua, trung tuan, trung cap
giao thai » gian thai, giai thoai, giao nhan
ho chieu » theo chieu, hoc thieu, doi chieu

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 ((trung cua) or (truong cao)) dang luong ((giao thai) OR (giao thanh)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh ((trung cua) OR (truong cao)) dang luong ((giao thai) OR (giao thanh)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh ((trung cua) or (truong cao)) dang luong ((giao thai) OR (giao thanh)) cao".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh ((trung cua) or (truong cao)) dang luong ((giao thai) OR (giao thanh)) cao*.