Perhaps you should try some spelling variations:
danh thai » anh thai, dang thai, dinh thai
thai cua » than cua, tai cuc, tri cua
te sach » toc sach
va danh » va dinh, va dan, va hanh
va tham » van tham, va thanh, va thuat
va cham » va chat
sach ky » sac ky, sach y, sach ty
tang ma » mang may, tang van
tang xa » trang xa, lang xa, tang ha
cua tre » cua te, cuu tre, cua triet

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 ((tang xa) or (tang ma)) hoi. hieu ((va cham) OR (va tham)) duc va danh thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky ((tang xa) OR (tang ma)) hoi. hieu ((va cham) OR (va tham)) duc va danh thai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky ((tang xa) or (tang ma)) hoi. hieu ((va cham) OR (va tham)) duc va danh thai cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ky ((tang xa) or (tang ma)) hoi. hieu ((va cham) OR (va tham)) duc va danh thai cua tre*.