Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
cham xuc » cam xuc, chat xuc, cham soc
dua tren » dung tren
va thanh » gia thanh, ban thanh, va tinh
tu sach » thu sach, su sach, te sach
va cham » va chat, va tham
hieu va » lieu va, hieu qua
tay hoi » tay ho, tao hoi, tay thai
xay hoi » xa hoi, cay phoi, gay thoi
cuu tre » cua tre, cau tren, cau treo
y dang » ky dang, 2 dang, _ dang
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 dang ((xay hoi) OR (tay hoi)). hieu va cham xuc va thanh lap ((dua tren) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y dang ((xay hoi) OR (tay hoi)). hieu va cham xuc va thanh lap ((dua tren) OR (cuu tre))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y dang ((xay hoi) OR (tay hoi)). hieu va cham xuc va thanh lap ((dua tren) or (cuu tre))*".