Perhaps you should try some spelling variations:
sach hoa » sach ha, sach hoi, bach hoa
nang hai » hang hai, nang tai, dang hai
cac khoi » cac thoi, cac khoan, cach thoi
cham xuc » cam xuc, chat xuc, cham soc
su sach » so sach, vu sach
cua tre » cua te, cua triet, dua tren
va nang » van nang, da nang, cam nang
vu cham » va cham, vu kham, tu cham
hieu vu » hieu va, hieu ve, hieu su
xac hoi » xa hoi, cac thoi, sach hoi
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: su sach hoa dan ((xac hoi) OR (cac khoi)). hieu vu cham xuc va nang hai ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach hoa dan ((xac hoi) OR (cac khoi)). hieu vu cham xuc va nang hai ((cua tre) OR (cuu tre))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach hoa dan ((xac hoi) OR (cac khoi)). hieu vu cham xuc va nang hai ((cua tre) or (cuu tre))*".