Perhaps you should try some spelling variations:
thai tren » thai tran, thi tren, thai trang
cau tren » cu tren, dau tren, ca tren
ban hang » ngan hang
cham xuc » cam xuc, chat xuc, cham soc
hieu su » hieu sau, tieu su, hieu so
su cham » su pham, tu cham, vu cham
xuc ban » duc ban, cuc ban, quoc ban
ky danh » ky anh, ky dang
hang vi » hang va, hanh vi, hang di
tu sach » thu sach, su sach, te sach
y danh » ly danh, 1 danh, 2 danh

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 danh) or (ky danh)) xa hoi. hieu su cham xuc ban hang vi ((cau tren) or (thai tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((y danh) OR (ky danh)) xa hoi. hieu su cham xuc ban hang vi ((cau tren) OR (thai tren)).
• Adding a wildcard symbol may retrieve word variants: tu sach ((y danh) or (ky danh)) xa hoi. hieu su cham xuc ban hang vi ((cau tren) or (thai tren))*.