Perhaps you should try some spelling variations:
sach doi » sach moi, sach dao, sach bai
cham luc » cham soc, nhan luc, cham cuu
dang xay » dang van, van xay
sach hoi » sach moi, cach thoi, hoach hoi
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
lang xa » lang ha, lang van
cua tre » cua te, cuu tre, cua triet
luc va » duc va, tuc va, loc va
vi cua » vai cua, di cua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach hoi) OR (sach doi)) ((lang xa) OR (dang xay)) hoi. hieu ve cham luc va danh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach hoi) OR (sach doi)) ((lang xa) or (dang xay)) hoi. hieu ve cham luc va danh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: te ((sach hoi) OR (sach doi)) ((lang xa) or (dang xay)) hoi. hieu ve cham luc va danh vi cua tre*.