Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
tran anh » tran manh, tran thanh, tran dinh
vai cua » dai cua, hai cua, lai cua
dao duc » giao duc, tao duoc
hieu ve » hieu va, hieu van
ky tang » ky nang, ky dang, kho tang
cua tre » cua te, cuu tre, cua triet
ve dao » de dao, va dao, ve bao
ma hoi » mai hoi, xa hoi, ma hoa
y tang » 6 tang, 7 tang, 5 tang
tuan » quan, luan, toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat lanh ((y tang) OR (ky tang)) ma hoi. hieu ve dao duc ((tran anh) or (tuan anh)) vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat lanh ((y tang) OR (ky tang)) ma hoi. hieu ve dao duc ((tran anh) OR (tuan anh)) vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat lanh ((y tang) OR (ky tang)) ma hoi. hieu ve dao duc ((tran anh) or (tuan anh)) vai cua tre".
• Adding a wildcard symbol may retrieve word variants: thuat lanh ((y tang) OR (ky tang)) ma hoi. hieu ve dao duc ((tran anh) or (tuan anh)) vai cua tre*.