Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ve triet » va trien, su triet
nhan luc » nang luc
hanh dau » hang dau, danh dau, han dau
cham luc » cham soc, cham cuu, chat lua
va hanh » van hanh, va thanh, va danh
te sach » toc sach
hieu ve » hieu va, hieu van
tang ma » mang may, tang van
y tang » ky tang, 6 tang, 7 tang
ma hoi » mai hoi, xa hoi, ma hoa

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 y tang ma hoi. hieu ve ((cham luc) or (nhan luc)) va hanh dau ((cua triet) or (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y tang ma hoi. hieu ve ((cham luc) OR (nhan luc)) va hanh dau ((cua triet) OR (ve triet)).
• Adding a wildcard symbol may retrieve word variants: te sach y tang ma hoi. hieu ve ((cham luc) or (nhan luc)) va hanh dau ((cua triet) or (ve triet))*.