Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh dai » hanh tai, hanh dao, vanh dai
cham xuc » chat xuc, cham soc, pham duc
cao hoi » cau hoi, co hoi, cao hoc
sach va » sach xa, sach ha, sach dao
va hanh » van hanh, va thanh, va danh
hieu ve » hieu va, hieu van
sach v » sach y, sach 2, sach vay

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((sach v) or (sach va)) nang cao hoi. hieu ve ((cham xuc) OR (cam xuc)) va hanh dai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((sach v) OR (sach va)) nang cao hoi. hieu ve ((cham xuc) OR (cam xuc)) va hanh dai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((sach v) or (sach va)) nang cao hoi. hieu ve ((cham xuc) OR (cam xuc)) va hanh dai cua triet".
• Adding a wildcard symbol may retrieve word variants: toc ((sach v) or (sach va)) nang cao hoi. hieu ve ((cham xuc) OR (cam xuc)) va hanh dai cua triet*.