Perhaps you should try some spelling variations:
xang cho » sang cho, hang cho, tang cho
te sach » toc sach
sach ty » sach y, sach tu, sach thu
hanh vu » hanh vi, hanh va, hanh tu
luc van » luoc van, luu van, duc van
cau luc » cau truc, cau phuc
hieu ve » hieu va, hieu van
cho hoc » co hoc, khoa hoc
cua cau » cua cac, cua chu, cua cay
ve cau » ke cau, va cau, ve cac
anh vu » anh tu, anh ve, anh du
anh va » hanh va

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 cau luc van ((((anh vu) OR (hanh vu))) or (anh va)) cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty xang cho hoc. hieu ve cau luc van ((((anh vu) OR (hanh vu))) OR (anh va)) cua cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty xang cho hoc. hieu ve cau luc van ((((anh vu) OR (hanh vu))) or (anh va)) cua cau*".