Perhaps you should try some spelling variations:
sach thue » sach thu, sach thieu, sach tham
thue dung » thuy dung, thuc dung, thuyet dung
doc sach » hoc sach, toc sach, nuoc sach
chat xuc » chat huu, chao xu, chat cua
van hanh » van thanh, ban hanh, van anh
cho hoc » co hoc, khoa hoc
hieu ve » hieu va, hieu van
cac xuc » cac nuoc, cac cuoc, cac quoc
cua cau » cua cac, cua chu, cua cay
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc sach thue dung cho hoc. hieu ve ((((cac xuc) OR (cam xuc))) or (chat xuc)) van hanh vi cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc sach thue dung cho hoc. hieu ve ((((cac xuc) OR (cam xuc))) OR (chat xuc)) van hanh vi cua cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc sach thue dung cho hoc. hieu ve ((((cac xuc) OR (cam xuc))) or (chat xuc)) van hanh vi cua cau*".