Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
truong cao » truong dai
trung cua » truong cua, trung tuan, trung cap
thong tan » thong than, thong tran, thong tin
ho chieu » theo chieu, hoc thieu, doi chieu
tan toan » tan tran, tap toan, van toan
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 (truong cao)) thong thong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh ((trung cua) OR (truong cao)) thong thong tan toan cao.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh ((trung cua) or (truong cao)) thong thong tan toan cao*.