Perhaps you should try some spelling variations:
dang hai » dang khai, hang hai, dung hai
chu tri » chua tri, chu thi, chu tai
hanh va » hang va, hanh vi
va hanh » van hanh, va thanh, va danh
truc va » thuc va, thuc vat, trung va
hai hoi » dai hoi, hai moi, hai hai
ky dang » ky nang, ky danh
ve cam » ve cham, ve cac, va cam
te san » te ban, ke san, tu san
va chu » va che, va cau, va chi
te sac » te sach, te cac

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sac) OR (te san)) ky dang hai hoi. hieu ((ve cam) OR (va cac)) truc va hanh va chu tri~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sac) OR (te san)) ky dang hai hoi. hieu ((ve cam) or (va cac)) truc va hanh va chu tri~".
• Adding a wildcard symbol may retrieve word variants: ((te sac) OR (te san)) ky dang hai hoi. hieu ((ve cam) or (va cac)) truc va hanh va chu tri*.