Perhaps you should try some spelling variations:
sanh cam » anh cam, manh cam, sanh ca
thuc day » thuc dan, thuc vat
day hanh » day nhanh, day thanh, dao hanh
so sanh » do sanh
ve phan » va phan, ke phan, vi phan
ve phat » va phat, te phat, de phat
vai cua » dai cua, lai cua, bai cua
hai cua » thai cua, dai cua, hoi cua
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: so sanh cam nang x hoi. hieu ((ve phan) OR (ve phat)) thuc day hanh ((vai cua) or (hai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh cam nang x hoi. hieu ((ve phan) OR (ve phat)) thuc day hanh ((vai cua) OR (hai cua)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh cam nang x hoi. hieu ((ve phan) OR (ve phat)) thuc day hanh ((vai cua) or (hai cua)) tre*".