Perhaps you should try some spelling variations:
sang lap » sang ma, sang tai, dan lap
sang tao » hang tai
nam thuc » nam thuoc, am thuc, nam thu
su sach » so sach, vu sach
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
thuc va » thuc vat, thuc dan, thuc day
hieu ve » hieu va, hieu van
sach ty » sach y, sach tu, sach thu
vi cua » vai cua, di cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ty ((sang lap) OR (sang tao)) hai. ((hieu ve) or (lieu va)) nam thuc va danh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty ((sang lap) OR (sang tao)) hai. ((hieu ve) OR (lieu va)) nam thuc va danh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty ((sang lap) OR (sang tao)) hai. ((hieu ve) or (lieu va)) nam thuc va danh vi cua te".
• Adding a wildcard symbol may retrieve word variants: su sach ty ((sang lap) OR (sang tao)) hai. ((hieu ve) or (lieu va)) nam thuc va danh vi cua te*.