Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
van cac » van hac, van cau, van bac
va danh » va dinh, va dan, va hanh
danh du » danh dau, danh tu, dinh du
vu dai » vi dai, va dai, vu hai
dai ky » dan ky, dai ly, sai ky
du cua » duy cua, dau cua, dum cua
cua te » cua tu
x hoi » xa hoi, x ho, 5 hoi
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 dai ky nang ((x hoi) or (o hoi)). hieu van cac nuoc va danh du cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu dai ky nang ((x hoi) OR (o hoi)). hieu van cac nuoc va danh du cua te.
• Adding a wildcard symbol may retrieve word variants: vu dai ky nang ((x hoi) or (o hoi)). hieu van cac nuoc va danh du cua te*.