Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
toc sach » hoc sach, doc sach, thuoc sach
cac xuc » cam xuc, cac nuoc, chat xuc
ly nang » ky nang, ly hang, ly vang
hanh di » hanh vi, hanh de, hang di
xuc van » duc van, luc van, vuc van
hieu ve » hieu va, hieu van
di cua » dai cua, doi cua, de cua
cua cu » cua chu, cua cau, cua su
ve cac » va cac, vien cac
ma hoi » mai hoi, ma hoa, me hoi

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)) ly nang ((ma hoi) OR (xa hoi)). hieu ve cac xuc van hanh di cua cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) ly nang ((ma hoi) OR (xa hoi)). hieu ve cac xuc van hanh di cua cu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (toc sach)) ly nang ((ma hoi) OR (xa hoi)). hieu ve cac xuc van hanh di cua cu*".