Perhaps you should try some spelling variations:
thanh vi » hanh vi, thanh va, nhanh vi
su triet » su viet, ve triet
thanh ve » hanh ve, thanh va, thanh vien
cau thuc » cau truc, cuu thuc, can thuc
so sach » so sanh, bo sach, co sach
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
xang co » nang co, lang co, tang co
su tien » su kien, su hien, tu tieng
ve cau » ke cau, va cau, ve cac
co loi » co hoi

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 ve cau thuc vat ((thanh vi) OR (thanh ve)) ((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 ve cau thuc vat ((thanh vi) OR (thanh ve)) ((su triet) OR (su tien)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ty xang co loi. hieu ve cau thuc vat ((thanh vi) OR (thanh ve)) ((su triet) or (su tien))".
• Adding a wildcard symbol may retrieve word variants: so sach ty xang co loi. hieu ve cau thuc vat ((thanh vi) OR (thanh ve)) ((su triet) or (su tien))*.