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
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
cau luc » cau truc, cau phuc
luc van » luoc van, luu van, duc van
ve cau » ke cau, va cau, ve cac
vi cua » vai cua, di cua
x 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: su sach thu nang ((((x hoi) OR (xa hoi))) or (x ho)). hieu ve cau luc van hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach thu nang ((((x hoi) OR (xa hoi))) OR (x ho)). hieu ve cau luc van hanh vi cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach thu nang ((((x hoi) OR (xa hoi))) or (x ho)). hieu ve cau luc van hanh vi cua triet*".