Perhaps you should try some spelling variations:
cam thuc » am thuc, nam thuc, cam thu
va thanh » gia thanh, ban thanh, va tinh
thanh vi » hanh vi, thanh va, thanh ve
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
thuc va » thuc vat, thuc dan, thuc day
cuu tre » cua tre, cau tren, cau treo
tu sac » tu cac, tu san, tu bac
va cam » va cham, va cac, va cao
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: ((tu sac) or (tu sach)) ky nang x hoi. hieu va cam thuc va thanh vi ((cuu tre) or (cua vat))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu sach)) ky nang x hoi. hieu va cam thuc va thanh vi ((cuu tre) OR (cua vat)).
• Adding a wildcard symbol may retrieve word variants: ((tu sac) or (tu sach)) ky nang x hoi. hieu va cam thuc va thanh vi ((cuu tre) or (cua vat))*.