Perhaps you should try some spelling variations:
thanh phan » thanh pho, thanh san, thanh toan
thu sach » tu sach, thuat sach, thuoc sach
duc danh » duc anh, duc hanh, duc dan
duc manh » suc manh, duc anh, duc minh
hieu ve » hieu va, hieu van
phan ca » phan cac, phan cau, phan cam
ca tren » cau tren, cu tren, la tren
y nang » ky nang, ly nang, v nang
ve cam » ve cham, ve cac, va cam
x hoi » xa hoi, o hoi, x ho

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: thu sach y nang x hoi. hieu ve cam ((duc danh) OR (duc manh)) thanh phan ca tren~.
• Adding a wildcard symbol may retrieve word variants: thu sach y nang x hoi. hieu ve cam ((duc danh) or (duc manh)) thanh phan ca tren*.