Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thanh vai » thanh hai, thanh van, thanh tai
cua triet » cua viet, su triet, va triet
sach ky » sac ky, sach y, sach ty
nang xa » lang xa, nang ma, mang xa
hieu va » lieu va
vai cua » dai cua, hai cua, lai cua
cac lo » cac lop, cac co, cac bo
lo gia » ho gia, co gia, do gia

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