Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hai truc » dai truc, hai trac, hang truc
so sach » so sanh, bo sach, co sach
danh xa » dinh xa, canh xa, dan xa
danh ca » dan ca, doanh cua, danh cho
qua hai » qua hoat
truc va » thuc va, thuc vat, trung va
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
di cua » dai cua, doi cua, de cua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y ((danh xa) OR (danh ca)) hoi. hieu qua hai truc va hanh di cua triet~.
• Adding a wildcard symbol may retrieve word variants: so sach y ((danh xa) or (danh ca)) hoi. hieu qua hai truc va hanh di cua triet*.