Perhaps you should try some spelling variations:
thuc day » thuc dan, thuc vat
cam thuc » am thuc, nam thuc, cam thu
cua tre » cua te, cua triet, dua tren
danh di » danh du, xanh di, danh dien
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
cuu tre » cau tren, cau treo
y nang » ky nang, ly nang, v nang
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach y nang xa hoi. hieu ve cam thuc day ((danh di) or (hanh kem)) ((cua tre) OR (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. hieu ve cam thuc day ((danh di) OR (hanh kem)) ((cua tre) OR (cuu tre))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang xa hoi. hieu ve cam thuc day ((danh di) or (hanh kem)) ((cua tre) OR (cuu tre))*".