Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
duy van » duy vat, dung van
tu dan » tuc dan, tu ban, cu dan
dan ky » van ky
qua ca » qua cac, qua cua, qua cai
ca duy » ta duy, va duy, ca dua
vi cua » vai cua, di cua

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 lang xa hoi. hieu qua ca duy van hanh vi cua vat~.
• Adding a wildcard symbol may retrieve word variants: tu dan ky lang xa hoi. hieu qua ca duy van hanh vi cua vat*.