Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thong minh » thong tin, hoang minh
chau tinh » cuu tinh, ha tinh, cua tinh
trung cua » truong cua, trung tuan, dung cua
trung cap » truong cao, trung tam
minh toan » tinh toan, manh toan, minh tuan
toan ban » van ban

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

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