Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
sach thu » sach thue, sach thieu, sach tham
thu nang » thi nang, thu hang, thu bang
van hanh » van thanh, ban hanh, van anh
so sach » so sanh, bo sach, co sach
thi van » thi lan, thi hanh, thi nang
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
hanh di » hanh vi, hanh de, hang di
di cua » dai cua, doi cua, de cua
x hoi » xa hoi, o hoi, 5 hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach thu nang ((x hoi) or (x ho)). ((thien van) OR (thi van)) cac xuc van hanh di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach thu nang ((x hoi) OR (x ho)). ((thien van) OR (thi van)) cac xuc van hanh di cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach thu nang ((x hoi) or (x ho)). ((thien van) OR (thi van)) cac xuc van hanh di cua triet*".