Perhaps you should try some spelling variations:
nang chon » nang cao, nang hoc, sang cho
toc sach » doc sach, thuoc sach, nuoc sach
nang cho » ngang cho, nang cao, sang cho
van hanh » van thanh, ban hanh, van anh
hoc sach » hoc sinh, hoc cac, hoc anh
hieu ve » hieu va, hieu van
cac luc » cau luc, coc luc, cac nuoc
luc van » luoc van, luu van, duc van
cua cau » cua cac, cua chu, cua cay
ve cac » va cac, vien cac
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: ((toc sach) or (hoc sach)) ty ((nang cho) OR (nang chon)) hoc. hieu ve cac luc van hanh vi cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (hoc sach)) ty ((nang cho) OR (nang chon)) hoc. hieu ve cac luc van hanh vi cua cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc sach) or (hoc sach)) ty ((nang cho) OR (nang chon)) hoc. hieu ve cac luc van hanh vi cua cau*".