Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
hieu ve » hieu va, hieu van
hanh di » hanh vi, hanh de, hang di
vu nang » vuc nang, va nang, vu dang
xuc van » duc van, luc van, xuc ban
cac xuc » cam xuc, cac nuoc, chat xuc
di cua » dai cua, doi cua, de cua
ve cac » va cac, vien cac
cua tu » cua tuc, cua su, cua cu
ma hoi » mai hoi, ma hoa, me hoi
v nang » va nang, van nang, voi nang

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 ((v nang) or (vu nang)) ((ma hoi) OR (xa hoi)). hieu ve cac xuc van hanh di cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((v nang) OR (vu nang)) ((ma hoi) OR (xa hoi)). hieu ve cac xuc van hanh di cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((v nang) or (vu nang)) ((ma hoi) OR (xa hoi)). hieu ve cac xuc van hanh di cua tu".
• Adding a wildcard symbol may retrieve word variants: te sach ((v nang) or (vu nang)) ((ma hoi) OR (xa hoi)). hieu ve cac xuc van hanh di cua tu*.