Perhaps you should try some spelling variations:
nang mai » nang ma, nang tai, lang mai
cac thuc » cach thuc, cac thu, can thuc
tu sach » thu sach, su sach, te sach
mai hoi » mai khoi, dai hoi, lai hoi
qua cac » cua cac
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
y nang » ky nang, ly nang, v nang
ca cuu » cua cuu, ca cau, ca chu
ca cua » co cua

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 mai hoi. hieu qua cac thuc va hanh ((((ca cuu) OR (cap cuu))) or (ca cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang mai hoi. hieu qua cac thuc va hanh ((((ca cuu) OR (cap cuu))) OR (ca cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang mai hoi. hieu qua cac thuc va hanh ((((ca cuu) OR (cap cuu))) or (ca cua)) tre".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang mai hoi. hieu qua cac thuc va hanh ((((ca cuu) OR (cap cuu))) or (ca cua)) tre*.