Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
toc sach » hoc sach, doc sach, thuoc sach
chat xuc » chat huu, cam xuc, chao xu
hieu ve » hieu va, hieu van
doc hoc » duoc hoc, toc hoc, duc hoc
anh doc » anh duc, anh hoc, nang doc
thi anh » thi hanh, thi thanh, thich anh
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: ((te sach) OR (toc sach)) thi anh doc hoc. hieu ve ((chat xuc) or (dat nuoc)) van hanh vi cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) thi anh doc hoc. hieu ve ((chat xuc) OR (dat nuoc)) van hanh vi cua cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) thi anh doc hoc. hieu ve ((chat xuc) or (dat nuoc)) van hanh vi cua cau*".