Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tu sach » thu sach, su sach, te sach
luc hoi » luc khoi, luc hoc, lu hoi
hieu va » lieu va, hieu qua
va pham » van pham, va phat, va phap
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
y nang » ky nang, ly nang, v nang
di cua » dai cua, doi cua, de cua

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 luc hoi. hieu va pham duc ((va hanh) or (va danh)) di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang luc hoi. hieu va pham duc ((va hanh) OR (va danh)) di cua triet.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang luc hoi. hieu va pham duc ((va hanh) or (va danh)) di cua triet*.