Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cham luc » cham soc, nhan luc, cham cuu
va thanh » gia thanh, ban thanh, va tinh
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
va cham » va chat, va tham
san cua » sang cua, ban cua, dan cua
y nang » ky nang, ly nang, v nang
luc va » duc va, tuc va, loc va
o hoi » co hoi, o hoc, o hoa
o hai » co hai, so hai, o lai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y nang ((o hoi) or (o hai)). hieu va cham luc va thanh san cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang ((o hoi) OR (o hai)). hieu va cham luc va thanh san cua triet.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang ((o hoi) or (o hai)). hieu va cham luc va thanh san cua triet*.