Perhaps you should try some spelling variations:
cay thuoc » cua thuoc, nam thuoc, va thuoc
lang van » dang van, tang van, hoang van
toc sach » hoc sach, doc sach, thuoc sach
van hanh » van thanh, ban hanh, van anh
hanh tac » canh tac, hanh cac, hanh tai
sach tu » sach thu, cach tu, sach ty
xang xa » lang xa, mang xa, ang xa
hieu va » lieu va, hieu qua
xuc van » duc van, luc van, vuc van
tac cay » tac can, tao cay, cac cay
va cam » va cham, va cac, va cao

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 xa) or (lang van)) hoi. hieu va cam xuc van hanh tac cay thuoc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach tu ((xang xa) OR (lang van)) hoi. hieu va cam xuc van hanh tac cay thuoc.
• Adding a wildcard symbol may retrieve word variants: toc sach tu ((xang xa) or (lang van)) hoi. hieu va cam xuc van hanh tac cay thuoc*.