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
hanh di » hanh vi, hanh de, hang di
xuc van » duc van, luc van, xuc ban
ve cham » va cham, ve chat, vu cham
su sach » so sach, vu sach
ve cam » ve cac, ve cai, ve cau
di cua » dai cua, doi cua, de cua
va cam » va cham, va cac, va cao
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 nang x hoi. hieu ((((ve cam) OR (va cam))) or (ve cham)) xuc van hanh di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach thu nang x hoi. hieu ((((ve cam) OR (va cam))) OR (ve cham)) xuc van hanh di cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach thu nang x hoi. hieu ((((ve cam) OR (va cam))) or (ve cham)) xuc van hanh di cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach thu nang x hoi. hieu ((((ve cam) OR (va cam))) or (ve cham)) xuc van hanh di cua triet*.