Perhaps you should try some spelling variations:
lieu van » hieu van, sieu van, lieu nano
bao thuc » cao thuoc, am thuc, va thuc
hanh lai » hanh tai, thanh lap, thanh loi
hanh lam » thanh lap, hanh kem, hanh va
nang xa » nang x, lang xa, nang ma
thuc va » thuc vat, thuc dan, thuc day
su viet » so viet
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 nang xa hoi. ((lieu van) or (lieu va)) bao thuc va ((hanh lai) OR (hanh lam)) su viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang xa hoi. ((lieu van) OR (lieu va)) bao thuc va ((hanh lai) OR (hanh lam)) su viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang xa hoi. ((lieu van) or (lieu va)) bao thuc va ((hanh lai) OR (hanh lam)) su viet".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang xa hoi. ((lieu van) or (lieu va)) bao thuc va ((hanh lai) OR (hanh lam)) su viet*.