Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cham luc » nhan luc, cham cuu, chat lua
thanh ly » thanh lay, thanh ky, thanh le
va thanh » gia thanh, ban thanh, va tinh
cua tre » cua te, cuu tre, dua tren
te sach » toc sach
hieu ve » hieu va, hieu van
tang ma » mang may, tang van
sach 6 » sach y, sach 2
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 6 tang ma hoi. hieu ve ((cham luc) OR (cham soc)) va thanh ly ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach 6 tang ma hoi. hieu ve ((cham luc) OR (cham soc)) va thanh ly ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach 6 tang ma hoi. hieu ve ((cham luc) OR (cham soc)) va thanh ly ((cua tre) or (cua triet))".
• Adding a wildcard symbol may retrieve word variants: te sach 6 tang ma hoi. hieu ve ((cham luc) OR (cham soc)) va thanh ly ((cua tre) or (cua triet))*.