Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
toc sach » hoc sach, doc sach, thuoc sach
van hanh » van thanh, ban hanh, van anh
chon hoc » cho hoc, chung hoc, chong doc
chon loc » cho hoc
xuc van » duc van, luc van, vuc van
cac xuc » cam xuc, cac nuoc, chat xuc
hieu va » lieu va, hieu qua
vai cua » dai cua, hai cua, lai cua
tu nano » truc nano

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) or (toc sach)) tu nano ((chon hoc) OR (chon loc)). hieu va cac xuc van hanh vai cua cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) tu nano ((chon hoc) OR (chon loc)). hieu va cac xuc van hanh vai cua cac*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (toc sach)) tu nano ((chon hoc) OR (chon loc)). hieu va cac xuc van hanh vai cua cac*".