Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
minh lai » minh hai, minh ai, minh lam
kinh lai » kinh hai, tinh lai, gianh lai
sach ty » sach y, sach tu, sach thu
su sach » so sach, vu sach
xuc va » duc va, tuc va, luc va
ve cac » vien cac
xang x » nang x
x hoi » xa hoi, o hoi, x ho

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 xang x hoi. hieu ((ve cac) OR (va cac)) xuc va ((kinh lai) or (minh lai)) cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty xang x hoi. hieu ((ve cac) OR (va cac)) xuc va ((kinh lai) OR (minh lai)) cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty xang x hoi. hieu ((ve cac) OR (va cac)) xuc va ((kinh lai) or (minh lai)) cua viet".
• Adding a wildcard symbol may retrieve word variants: su sach ty xang x hoi. hieu ((ve cac) OR (va cac)) xuc va ((kinh lai) or (minh lai)) cua viet*.