Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
thu sach » thuat sach, thuoc sach, thu hoach
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, ban thanh, va tinh
cac tren » ca tren, cau tren, rac tren
tu sach » su sach, te sach, tu cach
van cam » van nam, van lam, van cau
cam tuc » cam xuc, cam tu, nam thuc
vai cac » va cac, tai cac, voi cac
tuc va » thuc va, truc va, tuc xa
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (thu sach)) ky nang x hoi. hieu van cam tuc va thanh vai cac tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ky nang x hoi. hieu van cam tuc va thanh vai cac tren.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) ky nang x hoi. hieu van cam tuc va thanh vai cac tren*.