Perhaps you should try some spelling variations:
dac nhan » cac nhan, danh nhan, ca nhan
day hanh » day nhanh, day thanh, dao hanh
vu sach » vu bach, su sach, vu khach
ve cham » va cham, ve chat, vu cham
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
ve cam » ve cac, va cam, ve cai
nang o » nang co, nang ho, nang ro
di cua » dai cua, doi cua, de cua
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach y nang o hoi. hieu ((ve cam) or (ve cham)) thuc ((day hanh) or (dac nhan)) di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y nang o hoi. hieu ((ve cam) OR (ve cham)) thuc ((day hanh) OR (dac nhan)) di cua tre.
• Adding a wildcard symbol may retrieve word variants: vu sach y nang o hoi. hieu ((ve cam) or (ve cham)) thuc ((day hanh) or (dac nhan)) di cua tre*.