Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
thanh moi » thanh loi, thanh hoa, thanh hai
nam thuoc » nam thuc, nam thu, nha thuoc
su triet » su viet, su tien, ve triet
va thanh » gia thanh, ban thanh, va tinh
thuoc va » thuc va, thuoc ma, thuong va
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
te san » te ban, tu san, ta san
ke san » ke dan
va nam » van nam, ha nam, va nay

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te san) or (ke san)) ky lang xa hoi. hieu va nam thuoc va thanh moi ((cua triet) OR (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te san) OR (ke san)) ky lang xa hoi. hieu va nam thuoc va thanh moi ((cua triet) OR (su triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te san) or (ke san)) ky lang xa hoi. hieu va nam thuoc va thanh moi ((cua triet) OR (su triet))".
• Adding a wildcard symbol may retrieve word variants: ((te san) or (ke san)) ky lang xa hoi. hieu va nam thuoc va thanh moi ((cua triet) OR (su triet))*.