Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
cac thuc » cach thuc, cac thu, can thuc
hieu ve » hieu va, hieu van
tai cua » thai cua, tai cuc, tri cua
va hanh » van hanh, va thanh, va danh
thuc va » thuc vat, thuc dan, thuc day
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
lang ha » long ha
lang xa » dang xay, lang van
nang xa » nang x, nang ma, mang xa
cua tre » cua te, cuu tre, cua triet
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky ((nang xa) or (((lang xa) or (lang ha)))) hoi. hieu ve cac thuc va hanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((nang xa) OR (((lang xa) OR (lang ha)))) hoi. hieu ve cac thuc va hanh tai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((nang xa) or (((lang xa) or (lang ha)))) hoi. hieu ve cac thuc va hanh tai cua tre*.