Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
cham xuc » cam xuc, chat xuc, cham soc
van toan » van tuan, van tan, van thanh
sach thu » sach thue, sach thieu, sach tham
van doan » van doanh, van hoan, van dan
thu hang » thi hang, thuc hanh, thu huong
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
hang xa » hoang xa, hang va, hang ca
cua tre » cua te, cuu tre, cua triet
tu sach » thu sach, su sach, te sach

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 thu hang xa hoi. hieu ve cham xuc ((van doan) OR (van toan)) van ((cua tre) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach thu hang xa hoi. hieu ve cham xuc ((van doan) OR (van toan)) van ((cua tre) OR (su triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach thu hang xa hoi. hieu ve cham xuc ((van doan) OR (van toan)) van ((cua tre) or (su triet))*".