Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
nha nang » nham nang, kha nang, nha hang
cham cuu » cap cuu, chat cua
toc sach » hoc sach, doc sach, thuoc sach
nang xa » nang x, lang xa, nang ma
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
va dinh » van dinh, va kinh, va tinh
va dau » va dao
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: ((te sach) OR (toc sach)) nha nang xa hoi. hieu vu cham cuu ((va dinh) or (va dau)) vi cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) nha nang xa hoi. hieu vu cham cuu ((va dinh) OR (va dau)) vi cua viet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) nha nang xa hoi. hieu vu cham cuu ((va dinh) or (va dau)) vi cua viet*".