Perhaps you should try some spelling variations:
day hanh » day nhanh, day thanh, dao hanh
thuc day » thuc dan, thuc vat
su sach » so sach, vu sach
ve cham » va cham, ve chat, vu cham
hanh di » hanh vi, hanh de, hang di
cua tre » cua te, cuu tre, cua triet
nang xa » nang x, lang xa, nang ma
y nang » ky nang, ly nang, v nang
ve cam » ve cac, ve cai, ve cau
di cua » dai cua, doi cua, de cua
va cam » va cham, va cac, va cao

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) OR (va cam))) or (ve cham)) thuc day hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. hieu ((((ve cam) OR (va cam))) OR (ve cham)) thuc day hanh di cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang xa hoi. hieu ((((ve cam) OR (va cam))) or (ve cham)) thuc day hanh di cua tre".
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. hieu ((((ve cam) OR (va cam))) or (ve cham)) thuc day hanh di cua tre*.