Perhaps you should try some spelling variations:
thanh ve » hanh ve, thanh va, thanh vien
tu sach » thu sach, su sach, te sach
xang xa » lang xa, mang xa, ang xa
hieu va » lieu va
cau xuc » cam xuc, cau luc, cau truc
ca tren » cau tren, cu tren, la tren
y xang » ty xang
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: tu sach y xang xa hoi. ((hieu va) OR (hieu qua)) cau xuc va ((thanh ve) or (hanh vi)) ca tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y xang xa hoi. ((hieu va) OR (hieu qua)) cau xuc va ((thanh ve) OR (hanh vi)) ca tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y xang xa hoi. ((hieu va) OR (hieu qua)) cau xuc va ((thanh ve) or (hanh vi)) ca tren".
• Adding a wildcard symbol may retrieve word variants: tu sach y xang xa hoi. ((hieu va) OR (hieu qua)) cau xuc va ((thanh ve) or (hanh vi)) ca tren*.