Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van hanh » van thanh, ban hanh, van anh
kha nang » phap nang, ki nang, thi nang
hieu kha » lieu khoa, dieu khac, hien khoa
luc van » luoc van, luu van, duc van
tu sach » thu sach, su sach, vu sach
te sach » toc sach
tu cach » tu cac
nang ro » nang co, nang ho, nang ra
ro hai » co hai, o hai, so hai
vi cua » vai cua, di cua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((((tu sach) OR (tu cach))) OR (te sach)) ky nang ro hai. hieu kha nang luc van hanh vi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((tu sach) OR (tu cach))) or (te sach)) ky nang ro hai. hieu kha nang luc van hanh vi cua triet~".
• Adding a wildcard symbol may retrieve word variants: ((((tu sach) OR (tu cach))) or (te sach)) ky nang ro hai. hieu kha nang luc van hanh vi cua triet*.