Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thanh do » thanh de, thanh pho, thanh hoa
va thanh » gia thanh, ban thanh, va tinh
cam duc » cam xuc, cao duc, pham duc
sach ly » sach y, sach lo, sach ty
hieu va » lieu va
nang xa » lang xa, nang ma, mang xa
do cua » doi cua, co cua, de cua
cua te » cua tu

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 ly ((nang xa) or (nang x)) hoi. ((hieu va) OR (hieu qua)) cam duc va thanh do cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ly ((nang xa) OR (nang x)) hoi. ((hieu va) OR (hieu qua)) cam duc va thanh do cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach ly ((nang xa) or (nang x)) hoi. ((hieu va) OR (hieu qua)) cam duc va thanh do cua te".
• Adding a wildcard symbol may retrieve word variants: thuoc sach ly ((nang xa) or (nang x)) hoi. ((hieu va) OR (hieu qua)) cam duc va thanh do cua te*.