Perhaps you should try some spelling variations:
dang hanh » dang thanh, ban hanh, dang van
thuc dang » thuoc dang, thuc dan, thuc dung
ky dang » ky danh
van hoi » van hoa, van hoc, van hoe
hieu va » lieu va, hieu qua
vu san » va san, vu ban
vi cua » vai cua, di cua
cua te » cua tu
va am » va lam, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu san ((ky dang) OR (ky nang)) van hoi. hieu va am thuc dang hanh vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu san ((ky dang) OR (ky nang)) van hoi. hieu va am thuc dang hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: vu san ((ky dang) OR (ky nang)) van hoi. hieu va am thuc dang hanh vi cua te*.