Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
cua triet » cua viet, su triet, va triet
danh lai » danh sai, gianh lai, dinh lam
dang xay » dang van, van xay
thi van » thi lan, thi hanh, thi nang
lai cua » dai cua, hai cua, lai chau
va danh » va dinh, va dan, va hanh
cac duc » cac du, cao duc, cac dac
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
sach ty » sach y, sach tu, sach thu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach ty ((nang xa) or (dang xay)) hoi. ((hieu ve) or (thi van)) cac duc va danh lai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ty ((nang xa) OR (dang xay)) hoi. ((hieu ve) OR (thi van)) cac duc va danh lai cua triet.
• Adding a wildcard symbol may retrieve word variants: thuat sach ty ((nang xa) or (dang xay)) hoi. ((hieu ve) or (thi van)) cac duc va danh lai cua triet*.