Perhaps you should try some spelling variations:
chat hoc » chat hoa, chat thom, cho hoc
toc sach » hoc sach, doc sach, thuoc sach
van anh » van thanh, tuan anh, van minh
vuc van » duc van, luc van, thuc van
cac vuc » cac nuoc, cac vung, cac cuoc
hieu va » lieu va, hieu qua
cao hoc » co hoc, cho hoc
ty nang » ky nang, ty xang, ty hang
cua cau » cua cac, cua chu, cua cay
anh ca » danh ca, anh cam, anh cua
ca cua » co 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)) ty nang ((cao hoc) or (chat hoc)). hieu va cac vuc van anh ca cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) ty nang ((cao hoc) OR (chat hoc)). hieu va cac vuc van anh ca cua cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) ty nang ((cao hoc) or (chat hoc)). hieu va cac vuc van anh ca cua cau*".