Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
hieu van » hieu va, thien van, lieu va
danh tai » doanh tai, dinh tai, hanh tai
tai cua » thai cua, tai cuc, tri cua
sach ky » sac ky, sach y, sach ty
nang xa » lang xa, nang ma, mang xa
van cau » van dau, van hau, van chat
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa
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 ky ((nang xa) or (nang x)) hoi. hieu van cau ((xuc va) OR (tuc va)) danh tai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ky ((nang xa) OR (nang x)) hoi. hieu van cau ((xuc va) OR (tuc va)) danh tai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach ky ((nang xa) or (nang x)) hoi. hieu van cau ((xuc va) OR (tuc va)) danh tai cua te".
• Adding a wildcard symbol may retrieve word variants: thuoc sach ky ((nang xa) or (nang x)) hoi. hieu van cau ((xuc va) OR (tuc va)) danh tai cua te*.