Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
doc sach » toc sach, nuoc sach, dac sac
hoc sach » hoc sinh, hoc cac, hoc anh
vai cuu » vai cua
hieu ve » hieu va, hieu van
dang ma » dang mau, dang mam, dang mat
ky dang » ky nang, ky danh
cuu tre » cua tre, cau tren, cau treo
ma hoi » mai hoi, xa hoi, ma hoa
ve cam » ve cham, ve cac, va cam
luc va » tuc va, loc va

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: ((doc sach) OR (hoc sach)) ky dang ma hoi. hieu ve cam ((duc va) OR (luc va)) thanh vai cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc sach) OR (hoc sach)) ky dang ma hoi. hieu ve cam ((duc va) or (luc va)) thanh vai cuu tre~".
• Adding a wildcard symbol may retrieve word variants: ((doc sach) OR (hoc sach)) ky dang ma hoi. hieu ve cam ((duc va) or (luc va)) thanh vai cuu tre*.