Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh bac » nhanh bac, thanh bai, thanh san
thanh cac » hanh cac, thanh ca, tranh cac
su sach » so sach, vu sach
hieu va » lieu va
nang ma » tang ma, sang ma, nang cao
cau luc » cau truc, cau phuc
y nang » ky nang, ly nang, v nang
luc va » duc va, tuc va, loc va
ma hoi » mai hoi, xa hoi, ma hoa

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

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