Perhaps you should try some spelling variations:
hieu hoa » tieu hoa, dieu hoa, hiep hoa
thuc dan » thuc hanh, hoc dan, thuc vat
dan hanh » dang hanh, dan khanh, dan thanh
ve triet » va trien
su triet » su viet, su tien
nang xa » nang x, lang xa, nang ma
hieu ha » hieu va, hieu ca, hieu xa
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky

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