Perhaps you should try some spelling variations:
suu triet » su triet, cuu thiet, cua triet
sach ty » sach y, sach tu, sach thu
hanh da » hanh dao, hanh dua, hanh va
thuc va » thuc vat, thuc dan, thuc day
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
ang xa » lang xa, mang xa, dang xay
ty ang » ty xang, ty hang, ty anh
da suu » dao suu, da su

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ty ang xa hoi. ((hieu ve) or (hieu qua)) cau ((thuc va) or (hoc dan)) hanh da suu triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ang xa hoi. ((hieu ve) OR (hieu qua)) cau ((thuc va) OR (hoc dan)) hanh da suu triet.
• Adding a wildcard symbol may retrieve word variants: tu sach ty ang xa hoi. ((hieu ve) or (hieu qua)) cau ((thuc va) or (hoc dan)) hanh da suu triet*.