Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nam thuc » nam thuoc, am thuc, nam thu
thuc van » thuc vat, thuc dan, thuc va
van hanh » van thanh, ban hanh, van anh
su sach » so sach, vu sach
mang xa » lang xa, mang may, dang xay
hieu ve » hieu va, hieu van
hanh di » hanh vi, hanh de, hang di
sach v » sach va, sach y, sach 2
ve nam » he nam, va nam, le nam
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach v ((mang xa) or (nang x)) hoi. hieu ve nam thuc van hanh di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach v ((mang xa) OR (nang x)) hoi. hieu ve nam thuc van hanh di cua triet.
• Adding a wildcard symbol may retrieve word variants: su sach v ((mang xa) or (nang x)) hoi. hieu ve nam thuc van hanh di cua triet*.