Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
dong cong » duong cong, dung cong, dang cong
cong tinh » cong trinh, cong vinh, long tinh
mang cua » manh cua, dung cua, cong cua
toan ban » van ban
ban cua » ban quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sach) or (chieu tinh)) - nhanh ((mang cua) or (ban cua)) dong cong tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (chieu tinh)) - nhanh ((mang cua) OR (ban cua)) dong cong tinh toan ban.
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sach) or (chieu tinh)) - nhanh ((mang cua) or (ban cua)) dong cong tinh toan ban*.