Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
vat thanh » dat thanh, gat thanh, tat thanh
thanh le » thinh le, thanh ve, thanh de
toc sach » hoc sach, doc sach, thuoc sach
chat cua » nhat cua, chat va, chat huu
vu chat » va chat, ve chat, du chat
hieu vu » hieu va, hieu ve, hieu su
nang xa » lang xa, nang ma, mang xa
le cua » ly cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) OR (toc sach)) v ((nang xa) or (nang x)) hoi. hieu vu chat cua vat thanh le cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) v ((nang xa) OR (nang x)) hoi. hieu vu chat cua vat thanh le cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) v ((nang xa) or (nang x)) hoi. hieu vu chat cua vat thanh le cua triet".
• Adding a wildcard symbol may retrieve word variants: ((te sach) OR (toc sach)) v ((nang xa) or (nang x)) hoi. hieu vu chat cua vat thanh le cua triet*.