Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chong cong » cong cong, thong cong, phong cong
cuong cong » cong cong, luong cong, duong cong
trung cua » truong cua, trung tuan, trung cap
ho chieu » theo chieu, hoc thieu, doi chieu
toan cao » toan ban, toan tap

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