Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
cham luc » cham soc, nhan luc, cham cuu
te sach » toc sach
va hanh » van hanh, va thanh, va danh
sach ty » sach y, sach tu, sach thu
va cham » va chat, va tham
hieu va » lieu va, hieu qua
cua tuc » cua duc, cua thuoc, luat tuc
luc va » duc va, tuc va, loc va
cua tu » cua su, cua cu, cua te
o hoi » co hoi, o hoc, o hai
x hoi » xa hoi, x ho, 5 hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ty xang ((x hoi) or (o hoi)). hieu va cham luc va hanh vai ((cua tu) or (cua tuc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty xang ((x hoi) OR (o hoi)). hieu va cham luc va hanh vai ((cua tu) OR (cua tuc)).
• Adding a wildcard symbol may retrieve word variants: te sach ty xang ((x hoi) or (o hoi)). hieu va cham luc va hanh vai ((cua tu) or (cua tuc))*.