Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
chat cuu » chat huu, chat cua, cham cuu
sanh ty » canh tay
lam cua » nam cua, lam chat
va danh » va dinh, va dan, va hanh
va xanh » va hanh, va anh, va banh
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
sach ty » sach y, sach tu, sach thu
ve chat » va chat, van chat

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

• Performing a fuzzy search may retrieve terms with similar spellings: so ((sanh ty) or (sach ty)) nang xa hoi. hieu ve chat cuu ((va xanh) OR (va danh)) lam cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so ((sanh ty) OR (sach ty)) nang xa hoi. hieu ve chat cuu ((va xanh) OR (va danh)) lam cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so ((sanh ty) or (sach ty)) nang xa hoi. hieu ve chat cuu ((va xanh) OR (va danh)) lam cua viet".
• Adding a wildcard symbol may retrieve word variants: so ((sanh ty) or (sach ty)) nang xa hoi. hieu ve chat cuu ((va xanh) OR (va danh)) lam cua viet*.