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
du chat » duoc chat, dung chat, doc chat
te sach » toc sach
nang xa » lang xa, nang ma, mang xa
vu chat » va chat, ve chat, vu cham
sach v » sach va, sach y, sach 2
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 v ((nang xa) or (nang x)) hoi. hieu ((vu chat) OR (du chat)) cua vat thanh le cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach v ((nang xa) OR (nang x)) hoi. hieu ((vu chat) OR (du chat)) cua vat thanh le cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach v ((nang xa) or (nang x)) hoi. hieu ((vu chat) OR (du chat)) cua vat thanh le cua triet".
• Adding a wildcard symbol may retrieve word variants: te sach v ((nang xa) or (nang x)) hoi. hieu ((vu chat) OR (du chat)) cua vat thanh le cua triet*.