Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
sach tham » sach nha
sach thu » sach thue, sach thieu, cach thuc
van hanh » van thanh, ban hanh, van anh
duc van » duc va, duc tan, duc manh
ve cham » va cham, ve chat, vu cham
ve cam » ve cac, va cam, ve cai
hang x » nang x, hoang xa, chang xu
vi cua » vai cua, di cua
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach thu) OR (sach tham)) hang x hoi. hieu ((ve cam) or (ve cham)) duc van hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach thu) OR (sach tham)) hang x hoi. hieu ((ve cam) OR (ve cham)) duc van hanh vi cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach thu) OR (sach tham)) hang x hoi. hieu ((ve cam) or (ve cham)) duc van hanh vi cua triet*".