Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
va thanh » gia thanh, ban thanh, va tinh
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
vai cua » dai cua, hai cua, lai cua
cam luc » cau luc
cua tre » cua te, cuu tre, cua triet
dang xa » dang xay, lang xa, dang ha
hieu va » hieu qua
ky dang » ky nang, ky danh

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky dang xa hoi. ((hieu va) OR (lieu va)) ((cam luc) or (cam xuc)) va thanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky dang xa hoi. ((hieu va) OR (lieu va)) ((cam luc) OR (cam xuc)) va thanh vai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky dang xa hoi. ((hieu va) OR (lieu va)) ((cam luc) or (cam xuc)) va thanh vai cua tre*".