Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
nuoc van » nuoc va, nuoc san, luoc van
dap nuoc » dat nuoc, cap nuoc, dau nuoc
mai khoi » mai khoa, tai khoa, cac khoi
hieu va » lieu va, hieu qua
hanh di » hanh vi, hanh de, hang di
cua tre » cua te, cuu tre, cua triet
sai ky » sac ky
va dap » va dao, va dau
ma hoi » mai hoi, xa hoi, me hoi
di cua » dai cua, doi cua, de cua
vu sai » vu hai, vu san, vu dai

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sai ky nang ((((ma hoi) or (mai khoi))) or (ma hoa)). hieu va dap nuoc van hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sai ky nang ((((ma hoi) OR (mai khoi))) OR (ma hoa)). hieu va dap nuoc van hanh di cua tre.
• Adding a wildcard symbol may retrieve word variants: vu sai ky nang ((((ma hoi) or (mai khoi))) or (ma hoa)). hieu va dap nuoc van hanh di cua tre*.