Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
dang xay » dang van, van xay
so sach » so sanh, bo sach, co sach
cac xuc » cam xuc, cac nuoc, chat xuc
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
dang xa » lang xa, dang ha, dang va
xuc va » duc va, tuc va, luc va
vi cua » vai cua
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ky ((dang xa) or (dang xay)) hoi. hieu va cac xuc va thanh ((vi cua) or (di cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky ((dang xa) OR (dang xay)) hoi. hieu va cac xuc va thanh ((vi cua) OR (di cua)) tre.
• Adding a wildcard symbol may retrieve word variants: so sach ky ((dang xa) or (dang xay)) hoi. hieu va cac xuc va thanh ((vi cua) or (di cua)) tre*.