Perhaps you should try some spelling variations:
cach thuc » anh thuc, cac thu
su sach » so sach, vu sach
danh di » danh du, xanh di, danh dien
danh vi » hanh vi, dinh vi, danh va
thuc va » thuc vat, thuc dan, thuc day
ve cach » va cach, ve cac, ve canh
hieu ve » hieu va, hieu van
ly vang » ly hang, ly van, ly quang
ly nang » ky nang, ly hang, ly quang
cua tre » cua te, cuu tre, cua triet

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 ((ly nang) or (ly vang)) xa hoi. hieu ve cach thuc va ((danh vi) or (danh di)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ly nang) OR (ly vang)) xa hoi. hieu ve cach thuc va ((danh vi) OR (danh di)) cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ((ly nang) or (ly vang)) xa hoi. hieu ve cach thuc va ((danh vi) or (danh di)) cua tre*.