Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
cua cau » cua cac, cua chu, cua can
luc van » luoc van, luu van, duc van
cac luc » cau luc, coc luc, cac nuoc
hieu ve » hieu va, hieu van
cuo hoc » co hoc, cho hoc, cao hoc
cua cay » cua cac
ve cac » va cac, vien cac

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 ((tu nano) or (truc nano)) cuo hoc. hieu ve cac luc van hanh vi ((cua cau) OR (cua cay))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((tu nano) OR (truc nano)) cuo hoc. hieu ve cac luc van hanh vi ((cua cau) OR (cua cay))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((tu nano) or (truc nano)) cuo hoc. hieu ve cac luc van hanh vi ((cua cau) OR (cua cay))*".