Perhaps you should try some spelling variations:
thanh vi » hanh vi, thanh va, thanh ve
va thanh » gia thanh, ban thanh, va tinh
su sach » so sach, vu sach
cam luc » cau luc
cua tre » cua te, cuu tre, cua triet
hieu va » lieu va, hieu qua
ky danh » ky anh
ky dang » ky nang
vi cua » vai cua, di cua

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) OR (ky danh)) xa hoi. hieu va ((cam luc) or (cam xuc)) va thanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ky dang) OR (ky danh)) xa hoi. hieu va ((cam luc) OR (cam xuc)) va thanh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ky dang) OR (ky danh)) xa hoi. hieu va ((cam luc) or (cam xuc)) va thanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: su sach ((ky dang) OR (ky danh)) xa hoi. hieu va ((cam luc) or (cam xuc)) va thanh vi cua tre*.