Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh sua » hinh su, hanh va, hanh tu
sach ky » sac ky, sach y, sach ty
sua cua » sua chua, qua cua, lua cua
va hanh » van hanh, va thanh, va danh
va chat » van chat, va phat, cao chat
vu sach » vu bach, su sach, vu khach
ve cham » va cham, ve chat, vu cham
loc va » hoc va, luc va
ma hoi » mai hoi, xa hoi, 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 ky nang ((ma hoi) OR (ma hoa)). hieu ((ve cham) or (va chat)) loc va hanh sua cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky nang ((ma hoi) OR (ma hoa)). hieu ((ve cham) OR (va chat)) loc va hanh sua cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ky nang ((ma hoi) OR (ma hoa)). hieu ((ve cham) or (va chat)) loc va hanh sua cua triet".
• Adding a wildcard symbol may retrieve word variants: vu sach ky nang ((ma hoi) OR (ma hoa)). hieu ((ve cham) or (va chat)) loc va hanh sua cua triet*.