Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
duc van » duc va, duc tan, duc manh
tu dan » tuc dan, tu ban, cu dan
dan ky » van ky
qua ca » qua cac, qua cua, qua cai
ca duc » cao duc, cua duc, ca dua
vi cua » vai cua, di cua
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: tu dan ky nang x hoi. hieu qua ca duc van hanh vi cua vat~.
• Adding a wildcard symbol may retrieve word variants: tu dan ky nang x hoi. hieu qua ca duc van hanh vi cua vat*.