Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van ban
xach tay » canh tay
hang cho » sang cho, hang khoa, phong cho
sach tay » sach hay, sach nay, sach tai
cac luc » cau luc, coc luc, cac nuoc
van anh » van thanh, tuan anh, van minh
hieu ve » hieu va, hieu van
cho hoc » co hoc, khoa hoc
cua cay » cua cac
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 tay) OR (xach tay)) hang cho hoc. hieu ve cac luc ((van hanh) or (van anh)) vi cua cay~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((sach tay) OR (xach tay)) hang cho hoc. hieu ve cac luc ((van hanh) OR (van anh)) vi cua cay*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((sach tay) OR (xach tay)) hang cho hoc. hieu ve cac luc ((van hanh) or (van anh)) vi cua cay*".