Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
cham duc » pham duc, cham soc, pham duy
vu sach » vu bach, su sach, vu khach
lam cuu » lam chu, lam cua, cham cuu
va hanh » van hanh, va danh, ban hanh
vu cham » va cham, vu kham, tu cham
hieu vu » hieu va, hieu ve, hieu su
sach ty » sach y, sach tu, sach thu
mai hoi » mai khoi, dai hoi, lai hoi
ty tang » tay tang, ty xang, ty hang
cuu tre » cua tre, cau tren, cau treo
ma hoi » xa hoi, ma hoa, me hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ty tang ((ma hoi) OR (mai hoi)). hieu vu cham duc ((va hanh) or (va thanh)) lam cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ty tang ((ma hoi) OR (mai hoi)). hieu vu cham duc ((va hanh) OR (va thanh)) lam cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ty tang ((ma hoi) OR (mai hoi)). hieu vu cham duc ((va hanh) or (va thanh)) lam cuu tre*".