Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
va thanh » gia thanh, ban thanh, va tinh
tu sach » thu sach, te sach, tu cach
vai cua » dai cua, hai cua, lai cua
cam duc » cam xuc, cao duc, pham duc
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
lang ha » long ha
su sach » so sach, vu sach
ve cam » ve cham, ve cac, va cam

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: ((tu sach) OR (su sach)) ky ((nang x) OR (lang ha)) hoi. hieu ve cam duc va thanh vai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (su sach)) ky ((nang x) or (lang ha)) hoi. hieu ve cam duc va thanh vai cua tre~".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (su sach)) ky ((nang x) or (lang ha)) hoi. hieu ve cam duc va thanh vai cua tre*.