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 nang, ky danh
dang ma » dang mau, dang mam, dang mat
le nam » ly nam, he nam, le na
vi cua » vai cua, di cua
vu san » va san
va nam » van nam, ha nam, va nay
ma hoi » mai hoi, xa hoi, ma hoa
vu ban » tu ban, va ban
cua te » cua tu

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) OR (vu ban)) ky dang ma hoi. hieu ((va nam) or (le nam)) thuc dang hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu san) OR (vu ban)) ky dang ma hoi. hieu ((va nam) OR (le nam)) thuc dang hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu san) OR (vu ban)) ky dang ma hoi. hieu ((va nam) or (le nam)) thuc dang hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: ((vu san) OR (vu ban)) ky dang ma hoi. hieu ((va nam) or (le nam)) thuc dang hanh vi cua te*.