Perhaps you should try some spelling variations:
cac thuc » cach thuc, cac thu, can thuc
cham cuu » cap cuu, chat cua
va nhanh » va thanh, va hanh, va nhan
cay cuu » cap cuu, cay chu
thuc va » thuc vat, thuc dan, thuc day
tu sach » thu sach, su sach, te sach
qua cac » cua cac
tang ma » mang may, tang van
nang ma » sang ma, nang cao, mang may

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y ((nang ma) or (tang ma)) hoi. hieu qua cac thuc va nhanh ((cay cuu) OR (cham cuu)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y ((nang ma) OR (tang ma)) hoi. hieu qua cac thuc va nhanh ((cay cuu) OR (cham cuu)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y ((nang ma) or (tang ma)) hoi. hieu qua cac thuc va nhanh ((cay cuu) OR (cham cuu)) tre".
• Adding a wildcard symbol may retrieve word variants: tu sach y ((nang ma) or (tang ma)) hoi. hieu qua cac thuc va nhanh ((cay cuu) OR (cham cuu)) tre*.