Perhaps you should try some spelling variations:
dang hanh » dang thanh, ban hanh, dang van
thuc dang » thuoc dang, thuc dan, thuc dung
hiep hoa » hieu hoa, hien khoa, dien hoa
ve triet » va trien, su triet
nang xa » nang x, lang xa, nang ma
hieu ha » hieu hoa, hieu va, hieu xa
hieu ca » hieu cac, hieu cua, hieu va
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
vi ve » va ve, gi ve, ve ve

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky nang xa hoi. ((((hieu ha) OR (hieu ca))) or (hiep hoa)) am thuc dang hanh vi ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang xa hoi. ((((hieu ha) OR (hieu ca))) OR (hiep hoa)) am thuc dang hanh vi ve triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang xa hoi. ((((hieu ha) OR (hieu ca))) or (hiep hoa)) am thuc dang hanh vi ve triet*".