Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
thu sach » tu sach, thuat sach, thuoc sach
va thanh » gia thanh, ban thanh, va tinh
cau tren » cu tren, dau tren, ca tren
lang xa » lang ha, dang xay, lang van
sach ty » sach y, sach tu, sach thu
tang ma » mang may, tang van
vai cau » va cau, van cau, vai cac
va cham » va chat, va tham
va cao » va cac, va co, va dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ty ((tang ma) or (lang xa)) hoi. hieu ((va cham) or (va cao)) duc va thanh vai cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ty ((tang ma) OR (lang xa)) hoi. hieu ((va cham) OR (va cao)) duc va thanh vai cau tren.
• Adding a wildcard symbol may retrieve word variants: thu sach ty ((tang ma) or (lang xa)) hoi. hieu ((va cham) or (va cao)) duc va thanh vai cau tren*.