Perhaps you should try some spelling variations:
hieu van » thien van, lieu va, hieu ve
sach thu » sach thue, sach thieu, sach tham
nhanh vi » hanh vi, nhanh va, nhanh thi
xa nhanh » xa thanh, xa khanh, day nhanh
xach tay » canh tay
nam tuc » nam thuc, nam truc, nam tu
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
ang xa » lang xa, mang xa, dang xay
vi cua » vai cua, di cua

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 thu) or (xach tay)) ang xa hoi. ((hieu van) OR (hieu va)) nam tuc xa nhanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach thu) OR (xach tay)) ang xa hoi. ((hieu van) OR (hieu va)) nam tuc xa nhanh vi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach thu) or (xach tay)) ang xa hoi. ((hieu van) OR (hieu va)) nam tuc xa nhanh vi cua tre*".