Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nhan luc » nang luc
hieu van » hieu va, thien van, lieu va
ty hang » ly hang, ty xang, thi hang
van hoe » van hoa, van hoc, van hieu
nam luc » nang luc, nam thuc, nam duoc
ty nang » ky nang, ty xang, ly nang
va hanh » van hanh, va thanh, va danh
so sach » so sanh, bo sach, co sach
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ((ty nang) or (ty hang)) van hoe. hieu van ((nam luc) OR (nhan luc)) va hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ((ty nang) OR (ty hang)) van hoe. hieu van ((nam luc) OR (nhan luc)) va hanh vi cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ((ty nang) or (ty hang)) van hoe. hieu van ((nam luc) OR (nhan luc)) va hanh vi cua triet*".