Perhaps you should try some spelling variations:
day hanh » day nhanh, day thanh, dao hanh
thuc day » thuc dan, thuc vat
su sach » vu sach
ve chat » va chat, van chat
so sach » so sanh, bo sach, co sach
hanh di » hanh vi, hanh de, hang di
nang xa » nang x, lang xa, nang ma
di cua » dai cua, doi cua, de cua
cua te » cua tu
ve cac » va cac, vien cac
y nang » ky nang, ly nang, v nang

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