Perhaps you should try some spelling variations:
cac triet » cac thiet, cac trieu, cau triet
thu sach » tu sach, thuat sach, thuoc sach
dang cap » nang cap, dang ca, dang cac
cap phoi » cap cho
van hanh » van thanh, ban hanh, van anh
sach ky » sac ky, sach y, sach ty
ky dang » ky nang, ky danh
hieu va » hieu qua
cam luc » cam xuc, cau luc
luc van » luoc van, luu van, duc van
hanh va » hang va, hanh vi

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky dang cap phoi. ((lieu va) or (hieu va)) cam luc van hanh va cac triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky dang cap phoi. ((lieu va) OR (hieu va)) cam luc van hanh va cac triet.
• Adding a wildcard symbol may retrieve word variants: thu sach ky dang cap phoi. ((lieu va) or (hieu va)) cam luc van hanh va cac triet*.