Perhaps you should try some spelling variations:
van dinh » van minh, van dich, va dinh
te sach » toc sach
vu dinh » quy dinh
tu nang » tru nang, tu nong, tu lang
tu nano » truc nano
hieu va » lieu va, hieu qua
cao xuc » cam xuc, cao duc, cao suc
vi cua » vai cua, di cua
va cao » va cac, va co, va dao
cua te » cua tu

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