Perhaps you should try some spelling variations:
cach thuc » anh thuc, cac thu
thuc ban » thuoc ban, thuc dan, thu ban
ban hanh » ban hang
hanh tri » thanh tri, hanh tai, hanh trinh
cua viet » ca viet, hoa viet, cua vat
so sinh » so sanh, so tinh, cho sinh
ly tang » le tang, ly hang, ly vang
tang xa » trang xa, tang ma, lang xa
hieu ve » hieu van
hieu va » lieu va

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sinh ly tang xa hoi. ((hieu ve) or (((hieu va) OR (hieu qua)))) cach thuc ban hanh tri cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sinh ly tang xa hoi. ((hieu ve) OR (((hieu va) OR (hieu qua)))) cach thuc ban hanh tri cua viet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sinh ly tang xa hoi. ((hieu ve) or (((hieu va) OR (hieu qua)))) cach thuc ban hanh tri cua viet*".