Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
xang cho » sang cho, hang cho, tang cho
hanh vai » hanh vi, hanh va, hanh tai
van hanh » van thanh, ban hanh, van anh
cac vuc » cac nuoc, cac vung, cac cuoc
cua cau » cua cac, cua chu, cua can
vuc van » duc van, luc van, thuc van
hieu va » lieu va, hieu qua
sach tu » sach thu, cach tu, sach ty
hieu ve » hieu van
cho hoc » co hoc, khoa hoc
tu xang » ty xang, tu lang, tu quang
cua cay » cua cac

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 tu xang cho hoc. ((hieu ve) or (hieu va)) cac vuc van hanh vai ((cua cau) or (cua cay))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach tu xang cho hoc. ((hieu ve) OR (hieu va)) cac vuc van hanh vai ((cua cau) OR (cua cay))*.