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
ky lang » ky dang, ky tang, tay lang
hieu va » lieu va, hieu qua
cau luc » cau truc, cau phuc
vai cuu » vai cua
cuu tre » cua tre, cau tren, cau treo

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 lang) OR (ky nang)) xa hoi. hieu va ((cau luc) or (cam xuc)) va thanh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ky lang) OR (ky nang)) xa hoi. hieu va ((cau luc) OR (cam xuc)) va thanh vai cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ky lang) OR (ky nang)) xa hoi. hieu va ((cau luc) or (cam xuc)) va thanh vai cuu tre*".