Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
dang hanh » dang thanh, ban hanh, dang van
thuc dang » thuoc dang, thuc dan, thuc dung
va triet » va thiet, va trien, ve triet
nam thuc » nam thuoc, am thuc, nam thu
hieu hoa » tieu hoa, dieu hoa, hiep hoa
su sach » so sach, vu sach
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
hoa nam » hoai nam, hoat nam, hoa am

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 y ((nang xa) or (lang xa)) hoi. hieu hoa nam thuc dang hanh vi ((cua triet) OR (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y ((nang xa) OR (lang xa)) hoi. hieu hoa nam thuc dang hanh vi ((cua triet) OR (va triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y ((nang xa) or (lang xa)) hoi. hieu hoa nam thuc dang hanh vi ((cua triet) OR (va triet))*".