Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
dat tren » dat trong, dua tren
mang xa » lang xa, mang may, dang xay
hieu va » lieu va, hieu qua
cau xuc » cau luc, cau truc, chat xuc
y mang » cay mang
anh vi » hanh vi, anh ve, anh vu
anh va » hanh va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y mang xa hoi. hieu va ((cau xuc) or (cam xuc)) van ((anh vi) OR (anh va)) dat tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y mang xa hoi. hieu va ((cau xuc) OR (cam xuc)) van ((anh vi) OR (anh va)) dat tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y mang xa hoi. hieu va ((cau xuc) or (cam xuc)) van ((anh vi) OR (anh va)) dat tren".
• Adding a wildcard symbol may retrieve word variants: thu sach y mang xa hoi. hieu va ((cau xuc) or (cam xuc)) van ((anh vi) OR (anh va)) dat tren*.