Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
dau tren » dau tien, dat tren, dau tieng
may hoi » may thoi, tay hoi, mai hoi
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
van anh » van thanh, van minh
y mang » cay mang
vi dau » vi dai, va dau, bi dau
tuan » quan, tran, luan

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 y mang may hoi. hieu va cac xuc ((van anh) OR (tuan anh)) vi dau tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y mang may hoi. hieu va cac xuc ((van anh) OR (tuan anh)) vi dau tren".
• Adding a wildcard symbol may retrieve word variants: thu sach y mang may hoi. hieu va cac xuc ((van anh) OR (tuan anh)) vi dau tren*.