Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
cau tren » cu tren, dau tren, ca tren
danh vai » danh sai, danh va, dang van
ty trang » ta trang, te trang, tu trang
trang xa » trang va, trang ha, trong xa
cham xuc » cam xuc, chat xuc, cham soc
cuu tre » cua tre, cau treo
so sach » so sanh, bo sach, co sach
sach ty » sach y, sach tu, sach thu
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
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: so sach ty trang xa hoi. hieu ve cham xuc va ((danh vai) or (doanh van)) ((cuu tre) OR (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ty trang xa hoi. hieu ve cham xuc va ((danh vai) OR (doanh van)) ((cuu tre) OR (cau tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ty trang xa hoi. hieu ve cham xuc va ((danh vai) or (doanh van)) ((cuu tre) OR (cau tren))".
• Adding a wildcard symbol may retrieve word variants: so sach ty trang xa hoi. hieu ve cham xuc va ((danh vai) or (doanh van)) ((cuu tre) OR (cau tren))*.