Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
trung vap » trung cap, trung van, trung lap
ho chieu » theo chieu, hoc thieu, doi chieu
trung va » truong va, trang va, trung ha
cong sat » cong suat, cong san, cong hat
sat phan » sat nhan, vat phan, xuat phan
phan cau » phan dau, phan cac, phan tu

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 vap) or (trung va)) nhung cong sat phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh ((trung vap) OR (trung va)) nhung cong sat phan cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh ((trung vap) or (trung va)) nhung cong sat phan cau*.