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