Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
hinh dinh » binh dinh, trinh dinh, hinh anh
ve chang » ve chong, ve chung, ve chuong
nong tan » cong tan, nong dan, nong san
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap
ve hang » ve hoang, va hang, ve hanh

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - hinh dinh ((ve hang) OR (ve chang)) nong tan toan cao~".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hinh dinh ((ve hang) OR (ve chang)) nong tan toan cao*.