Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van xuat » san xuat, va xuat, phan xuat
su sach » so sach
vu sach » vu bach, vu khach
xuat tu » luat tu, xuat thuc, luat tuc
xa hanh » xa thanh, xa khanh, va hanh
nang o » nang co, nang ho, nang ro
vi cua » vai cua, di cua
cua tu » cua tuc, cua su, cua cu
o hoi » co hoi, o hoc, o hai
tu xa » tu xay, tu va, te xa

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 (vu sach)) ky nang o hoi. hieu van xuat tu xa hanh vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) ky nang o hoi. hieu van xuat tu xa hanh vi cua tu.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu sach)) ky nang o hoi. hieu van xuat tu xa hanh vi cua tu*.