Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
hoc sach » hoc sinh, hoc anh
va thanh » gia thanh, ban thanh, va tinh
vai cua » dai cua, hai cua, lai cua
ve cham » va cham, ve chat, vu cham
cua tre » cua te, cuu tre, cua triet
dang ma » dang mau, dang mam, dang mat
ky dang » ky nang, ky danh
hoc cac » hoc cao
ma hoi » mai hoi, xa hoi, ma hoa
xuc va » duc va, tuc va, luc va
ve cam » ve cac, va cam, ve cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc sach) or (hoc cac)) ky dang ma hoi. hieu ((ve cam) or (ve cham)) xuc va thanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc sach) OR (hoc cac)) ky dang ma hoi. hieu ((ve cam) OR (ve cham)) xuc va thanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((hoc sach) or (hoc cac)) ky dang ma hoi. hieu ((ve cam) or (ve cham)) xuc va thanh vai cua tre*.