Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
cac xuc » cam xuc, cac nuoc, chat xuc
ty nang » ky nang, ty xang, ty hang
xuc van » duc van, luc van, vuc van
mai hoi » mai khoi, dai hoi, lai hoi
hieu va » lieu va, hieu qua
vi cua » vai cua, di cua
cua su » qua su
ma hoi » xa 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 (thuoc sach)) ty nang ((ma hoi) OR (mai hoi)). hieu va cac xuc van hanh vi cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (thuoc sach)) ty nang ((ma hoi) OR (mai hoi)). hieu va cac xuc van hanh vi cua su.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (thuoc sach)) ty nang ((ma hoi) OR (mai hoi)). hieu va cac xuc van hanh vi cua su".
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (thuoc sach)) ty nang ((ma hoi) OR (mai hoi)). hieu va cac xuc van hanh vi cua su*.