Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
sach tay » xach tay, sach hay, sach nay
tinh va » tich va, trinh van, trinh vat
xuc may » xuc hay, truc may, phuc may
ve cham » va cham, ve chat, vu cham
su sach » so sach, vu sach
lang ha » long ha
lang xa » dang xay, lang van
ve cam » ve cac, va cam, ve cai
va cua » va chua, via cua, ca cua

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 tay ((lang xa) OR (lang ha)) hoi. hieu ((ve cam) or (ve cham)) xuc may tinh va cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach tay ((lang xa) OR (lang ha)) hoi. hieu ((ve cam) OR (ve cham)) xuc may tinh va cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach tay ((lang xa) OR (lang ha)) hoi. hieu ((ve cam) or (ve cham)) xuc may tinh va cua viet".
• Adding a wildcard symbol may retrieve word variants: su sach tay ((lang xa) OR (lang ha)) hoi. hieu ((ve cam) or (ve cham)) xuc may tinh va cua viet*.