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 tuc » cam xuc, cam tu, nam thuc
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
mang xa » mang may, dang xay, mang cua
su sach » so sach, vu sach
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, ve cac, va cam
tuc va » thuc va, truc va, tuc xa

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 (su sach)) ky ((mang xa) or (lang xa)) hoi. hieu ve cam tuc va thanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky ((mang xa) OR (lang xa)) hoi. hieu ve cam tuc va thanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ky ((mang xa) or (lang xa)) hoi. hieu ve cam tuc va thanh vai cua tre*.