Perhaps you should try some spelling variations:
vat thanh » dat thanh, gat thanh, tat thanh
cau thuc » cau truc, cuu thuc, can thuc
thanh vi » hanh vi, thanh va, thanh ve
su triet » su viet, ve triet
so sach » so sanh, bo sach, co sach
sach ty » sach y, sach tu, sach thu
xang co » nang co, lang co, tang co
hieu ke » hieu kem, chieu ke, hieu ky
su tien » su kien, su hien, tu tieng
co loi » co hoi
ke cau » ket cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ty xang co loi. hieu ke cau thuc vat thanh vi ((su triet) or (su tien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ty xang co loi. hieu ke cau thuc vat thanh vi ((su triet) OR (su tien)).
• Adding a wildcard symbol may retrieve word variants: so sach ty xang co loi. hieu ke cau thuc vat thanh vi ((su triet) or (su tien))*.