Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
cao xuc » cam xuc, cao duc, cao suc
ty nang » ty xang, ty hang, ly nang
hieu va » lieu va, hieu qua
xuc van » duc van, luc van, vuc van
vi cua » vai cua, di cua
ma hoi » mai hoi, xa hoi, ma hoa
va cao » va cac, va co, va dao
cua su » qua su

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 (thuat sach)) ((ty nang) OR (ky nang)) ma hoi. hieu va cao xuc van hanh vi cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (thuat sach)) ((ty nang) OR (ky nang)) ma hoi. hieu va cao xuc van hanh vi cua su.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (thuat sach)) ((ty nang) OR (ky nang)) ma hoi. hieu va cao xuc van hanh vi cua su".
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (thuat sach)) ((ty nang) OR (ky nang)) ma hoi. hieu va cao xuc van hanh vi cua su*.