Perhaps you should try some spelling variations:
sach dat » sach dao, sach danh, sach bai
cua tre » cua te, cua triet, dua tren
va hanh » van hanh, va thanh, va danh
cac xuc » cam xuc, cac nuoc, chat xuc
hieu va » lieu va, hieu qua
sach da » sach dao, sach dau, sach xa
nang xa » nang x, lang xa, nang ma
cuu tre » cau tren, cau treo
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 da) OR (sach dat)) nang xa hoi. hieu va cac xuc va hanh vi ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach da) OR (sach dat)) nang xa hoi. hieu va cac xuc va hanh vi ((cua tre) OR (cuu tre))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach da) OR (sach dat)) nang xa hoi. hieu va cac xuc va hanh vi ((cua tre) or (cuu tre))*".