Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
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
cuu tre » cua tre, cau tren, cau treo
hieu ve » hieu va
ly hang » ly quang
xuc va » duc va, tuc va, luc va

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) OR (hieu van)) 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) OR (hieu van)) 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) OR (hieu van)) cam xuc va hanh vai cuu tre*.