Perhaps you should try some spelling variations:
hanh thai » nhanh thai, hinh thai, hanh tai
nang tai » hang tai, tang tai, sang tai
thai cua » than cua, tai cuc, tri cua
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
tai hoa » tai khoa, thai hoa, thi hoa
hieu ke » hieu kem, chieu ke, hieu ky
cua tre » cua te, cuu tre, cua triet
ke cau » ket cau
luc va » duc va, tuc va
loc va » hoc va

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 ky nang tai hoa. hieu ke cau ((luc va) OR (loc va)) hanh thai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky nang tai hoa. hieu ke cau ((luc va) OR (loc va)) hanh thai cua tre".
• Adding a wildcard symbol may retrieve word variants: so sach ky nang tai hoa. hieu ke cau ((luc va) OR (loc va)) hanh thai cua tre*.