Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
banh thai » anh thai, ban thai, nhanh thai
thai cau » thai cao, toan cau, thai van
cau tren » cu tren, dau tren, ca tren
hieu ve » hieu va, hieu van
duc ban » duc tan, duc van, duc man
dua ban » dia ban, cua ban, qua ban
ky dang » ky nang
ky danh » ky anh
tay ho » tay co, tay o, tay khao
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach ((ky danh) or (ky dang)) tay ho. hieu ve cam ((duc ban) or (dua ban)) banh thai cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ((ky danh) OR (ky dang)) tay ho. hieu ve cam ((duc ban) OR (dua ban)) banh thai cau tren.
• Adding a wildcard symbol may retrieve word variants: thuoc sach ((ky danh) or (ky dang)) tay ho. hieu ve cam ((duc ban) or (dua ban)) banh thai cau tren*.