Perhaps you should try some spelling variations:
duoc hoi » quoc hoi, duoc hoc, duoc si
te sach » toc sach
va hanh » van hanh, va thanh, va danh
va cham » va chat, va tham
ve cham » ve chat, vu cham, ve chim
doc hoi » hoc hoi, doc hai, doi hoi
y nang » ky nang, ly nang, v nang
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua
cua te » cua tu

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 sach y nang ((doc hoi) OR (duoc hoi)). hieu ((ve cham) OR (va cham)) xuc va hanh vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang ((doc hoi) OR (duoc hoi)). hieu ((ve cham) or (va cham)) xuc va hanh vi cua te~".
• Adding a wildcard symbol may retrieve word variants: te sach y nang ((doc hoi) OR (duoc hoi)). hieu ((ve cham) or (va cham)) xuc va hanh vi cua te*.