Perhaps you should try some spelling variations:
so hanh » so sanh, so danh, co hanh
nang xa » nang x, nang ma, mang xa
lang xa » lang ha, dang xay, lang van
hieu ve » hieu van
hieu va » lieu va, hieu qua
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
hanh y » hanh ky, anh y, hanh _
vi hoa » voi hoa, vi hoc, va hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: so hanh y ((nang xa) or (lang xa)) hoi. ((hieu ve) or (hieu va)) am thuc va hanh vi hoa viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so hanh y ((nang xa) OR (lang xa)) hoi. ((hieu ve) OR (hieu va)) am thuc va hanh vi hoa viet.
• Adding a wildcard symbol may retrieve word variants: so hanh y ((nang xa) or (lang xa)) hoi. ((hieu ve) or (hieu va)) am thuc va hanh vi hoa viet*.