Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
cham cuu » cap cuu, chat cua
va dinh » van dinh, va kinh, va tinh
hieu vu » hieu va, hieu ve, hieu su
te sach » toc sach
lang ha » long ha
lang xa » dang xay, lang van
vu cham » va cham, vu kham, tu cham
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 nha ((lang xa) OR (lang ha)) 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 nha ((lang xa) OR (lang ha)) 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 nha ((lang xa) OR (lang ha)) hoi. hieu vu cham cuu ((va dinh) or (va dau)) vi cua viet*".