Perhaps you should try some spelling variations:
nghe nano » nghe san, nghe nhan
lang hoa » hang hoa, lang ha, nang hoa
su triet » su viet, su tien, ve triet
vat hanh » vat thanh, van hanh, va hanh
hanh ve » hanh vi, hanh va, hanh kem
ky lang » ky nang, ky dang, ky tang
hoa hoi » khoa hoi, hoa hoc, hoa doi
thu vat » thuc vat, thu va, thuat vat
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
kien » bien, vien, tien

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: tu sac ky lang hoa hoi. hieu ((nghe nano) OR (nghe dan)) thu vat hanh ve ((su triet) OR (su kien))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky lang hoa hoi. hieu ((nghe nano) OR (nghe dan)) thu vat hanh ve ((su triet) or (su kien))~".
• Adding a wildcard symbol may retrieve word variants: tu sac ky lang hoa hoi. hieu ((nghe nano) OR (nghe dan)) thu vat hanh ve ((su triet) or (su kien))*.