Perhaps you should try some spelling variations:
cua triet » su triet, va triet
thanh hai » thanh phan, thanh hoa, thanh san
cua viet » ca viet, hoa viet, cua vat
nam thuc » nam thuoc, am thuc, nam thu
va thanh » gia thanh, ban thanh, va tinh
te sach » toc sach
thuc va » thuc vat, thuc dan, thuc day
hieu le » hieu ve, hieu he, hieu ly
hoa hoi » khoa hoi, hoa hoc, hoa doi
ky lang » ky dang, ky tang, tay lang
le nam » ly nam, he nam, le na

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

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