Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
doc sach » hoc sach, toc sach, nuoc sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
hieu va » lieu va, hieu qua
xuc van » duc van, luc van, xuc ban
vuc van » duc van, luc van, thuc van
hanh di » hanh de, hang di, danh di
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: doc sach ty nang x hoi. hieu va cam ((xuc van) or (vuc van)) ((hanh di) or (hanh vi)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc sach ty nang x hoi. hieu va cam ((xuc van) OR (vuc van)) ((hanh di) OR (hanh vi)) cua triet.
• Adding a wildcard symbol may retrieve word variants: doc sach ty nang x hoi. hieu va cam ((xuc van) or (vuc van)) ((hanh di) or (hanh vi)) cua triet*.