Perhaps you should try some spelling variations:
xang cho » sang cho, hang cho, tang cho
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
sach ty » sach y, sach tu, sach thu
cho hoc » co hoc, khoa hoc
hieu ve » hieu va, hieu van
cac luc » coc luc, cac nuoc, cac cuoc
cau luc » cau truc, cau phuc
vi cua » vai cua
di cua » dai cua, doi cua, de 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 ty xang cho hoc. hieu ve ((cac luc) OR (cau luc)) van hanh ((vi cua) or (di cua)) cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty xang cho hoc. hieu ve ((cac luc) OR (cau luc)) van hanh ((vi cua) OR (di cua)) cac*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty xang cho hoc. hieu ve ((cac luc) OR (cau luc)) van hanh ((vi cua) or (di cua)) cac*".