Perhaps you should try some spelling variations:
hanh thai » nhanh thai, hinh thai, hanh tai
thai cua » than cua, tai cuc, tri cua
te sach » toc sach
xa hanh » xa thanh, xa khanh, va hanh
thuc xa » thuc xay, tuc xa, thuc va
ky tang » ky nang, ky dang, kho tang
ky sang » ky nang, ky dang, duy sang
cua tre » cua te, cuu tre, cua triet
va nam » van nam, va nay
ma hoi » mai hoi, xa hoi, ma hoa

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 sang) or (ky tang)) ma hoi. hieu ((va nam) or (ha nam)) thuc xa hanh thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ky sang) OR (ky tang)) ma hoi. hieu ((va nam) OR (ha nam)) thuc xa hanh thai cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach ((ky sang) or (ky tang)) ma hoi. hieu ((va nam) or (ha nam)) thuc xa hanh thai cua tre*.