Perhaps you should try some spelling variations:
ve triet » va trien
thanh va » thanh van, hanh va, thanh ha
su triet » su viet, su tien
nam thuc » nam thuoc, am thuc, nam thu
va thanh » gia thanh, ban thanh, va tinh
ky lang » ky dang, ky tang, tay lang
mai hoi » mai khoi, dai hoi, lai hoi
hieu ve » hieu va, hieu van
thuc va » thuc vat, thuc dan, thuc day
bo sac » bo sach
ve nam » he nam, va nam, le nam

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: bo sac ((ky lang) OR (ky nang)) mai hoi. hieu ve nam thuc va thanh va ((su triet) OR (ve triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "bo sac ((ky lang) OR (ky nang)) mai hoi. hieu ve nam thuc va thanh va ((su triet) or (ve triet))~".
• Adding a wildcard symbol may retrieve word variants: bo sac ((ky lang) OR (ky nang)) mai hoi. hieu ve nam thuc va thanh va ((su triet) or (ve triet))*.