Perhaps you should try some spelling variations:
sieu viet » su viet, dien viet, bien viet
suu viet » su viet, sau viet, so viet
hanh dao » lanh dao, thanh dat, thanh dam
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
hieu vo » hieu voi, hieu ve, hieu so
hieu va » lieu va, hieu qua
co thuc » do thuc, co thua, mo thuc
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
tu sac » tu sach, tu cac, tu san
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: tu sac ky dang xa hoi. ((hieu vo) or (hieu va)) co thuc va hanh dao ((suu viet) or (sieu viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky dang xa hoi. ((hieu vo) OR (hieu va)) co thuc va hanh dao ((suu viet) OR (sieu viet))*.