Perhaps you should try some spelling variations:
toc cach » hoc cach, toc sach, truoc cach
xang cho » sang cho, hang cho, tang cho
hieu van » hieu va, thien van, lieu va
duc van » duc va, duc tan, duc manh
cua cau » cua cac, cua chu, cua can
hanh di » hanh vi, hanh de, hang di
xuc van » luc van, vuc van, xuc ban
cach tu » cach thuc
van cac » van hac, van cau, van bac
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 cach tu xang cho hoc. hieu van cac ((xuc van) OR (duc van)) hanh di ((cua cau) or (cua cay))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc cach tu xang cho hoc. hieu van cac ((xuc van) OR (duc van)) hanh di ((cua cau) OR (cua cay))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc cach tu xang cho hoc. hieu van cac ((xuc van) OR (duc van)) hanh di ((cua cau) or (cua cay))*".