Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
thi hang » thi hanh, thi nang, thi hong
su sach » so sach, vu sach
vai cuu » vai cua
va hanh » van hanh, va thanh, va danh
cam tuc » cam tu, nam thuc, dam thuc
cuu tre » cua tre, cau tren, cau treo
hieu ve » hieu va, hieu van
ly hang » ly quang

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 ((ly hang) or (thi hang)) xa hoi. hieu ve ((cam tuc) OR (cam xuc)) va hanh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ly hang) OR (thi hang)) xa hoi. hieu ve ((cam tuc) OR (cam xuc)) va hanh vai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ly hang) or (thi hang)) xa hoi. hieu ve ((cam tuc) OR (cam xuc)) va hanh vai cuu tre".
• Adding a wildcard symbol may retrieve word variants: su sach ((ly hang) or (thi hang)) xa hoi. hieu ve ((cam tuc) OR (cam xuc)) va hanh vai cuu tre*.