Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh cat » hanh cac, hanh luat, nhanh cay
cau luc » cau phuc
cat cua » chat cua, ca cua, mat cua
va hanh » van hanh, va thanh, va danh
vu sach » vu bach, su sach, vu khach
hieu va » lieu va, hieu qua
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, ma hoa, me hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach y nang ((ma hoi) or (xa hoi)). hieu va ((cau luc) OR (cau truc)) va hanh cat cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y nang ((ma hoi) OR (xa hoi)). hieu va ((cau luc) OR (cau truc)) va hanh cat cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach y nang ((ma hoi) or (xa hoi)). hieu va ((cau luc) OR (cau truc)) va hanh cat cua triet".
• Adding a wildcard symbol may retrieve word variants: vu sach y nang ((ma hoi) or (xa hoi)). hieu va ((cau luc) OR (cau truc)) va hanh cat cua triet*.