Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
sach thue » sach thieu, sach tham, cach thuc
va thanh » gia thanh, ban thanh, va tinh
nang noi » nang doc
sach thu » sach thieu, sach tham, cach thuc
vai cuu » vai cua
chat do » chat deo, chat doc, chat co
ve chat » va chat, van chat
hieu ve » hieu va, hieu van
nang co » nang cao, nang doc, nang hoc
cuu tre » cua tre, cau tren, cau treo
do va » do van, so va

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu ((sach thu) or (sach thue)) ((nang co) OR (nang noi)) hoi. hieu ve chat do va thanh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach thu) OR (sach thue)) ((nang co) OR (nang noi)) hoi. hieu ve chat do va thanh vai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((sach thu) or (sach thue)) ((nang co) OR (nang noi)) hoi. hieu ve chat do va thanh vai cuu tre".
• Adding a wildcard symbol may retrieve word variants: thu ((sach thu) or (sach thue)) ((nang co) OR (nang noi)) hoi. hieu ve chat do va thanh vai cuu tre*.