Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
tru nang » tra nang, tri nang, truc nano
bo sach » co sach, hoc sach
hieu va » lieu va, hieu qua
tu nang » tu nong, tu nano, tu lang
duc van » duc va, duc tan, duc manh
hieu ve » hieu van
cam duc » cam xuc, cao duc, pham duc
vi cua » vai cua, di cua
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: bo sach ((tu nang) or (tru nang)) x hoi. ((hieu ve) or (hieu va)) cam duc van hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bo sach ((tu nang) OR (tru nang)) x hoi. ((hieu ve) OR (hieu va)) cam duc van hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: bo sach ((tu nang) or (tru nang)) x hoi. ((hieu ve) or (hieu va)) cam duc van hanh vi cua te*.