Perhaps you should try some spelling variations:
chat triet » chet triet, phat trien, chat thien
thanh lam » thanh lap, hanh lam, thanh nam
lam chat » luan chat, cao chat, ly chat
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
sac ky » cac ky, sai ky
xuc va » duc va, tuc va, xac va
luc va » duc va, tuc va, loc va
vu sac » vu sach, vu san, va sac
o hai » co hai, so hai, o lai
o hoi » co hoi, o hoc, o hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sac ky nang ((o hoi) OR (o hai)). hieu ve cham ((xuc va) or (luc va)) thanh lam chat triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky nang ((o hoi) OR (o hai)). hieu ve cham ((xuc va) OR (luc va)) thanh lam chat triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sac ky nang ((o hoi) OR (o hai)). hieu ve cham ((xuc va) or (luc va)) thanh lam chat triet*".