Perhaps you should try some spelling variations:
ve triet » va trien, su triet
cua viet » ca viet, hoa viet, cua vat
hang vai » hang tai, hang hai, hang vi
hieu van » hieu va, thien van, lieu va
van cham » van chat, van tham, va cham
sach ty » sach y, sach tu, sach thu
te sach » toc sach
ty nang » ky nang, ty xang, ty hang
soc va » hoc va, loc va, doc va
x hoi » xa hoi, o hoi, x ho

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 nang x hoi. hieu van cham soc va ((hang vai) or (hang va)) ((cua viet) or (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang x hoi. hieu van cham soc va ((hang vai) OR (hang va)) ((cua viet) OR (ve triet)).
• Adding a wildcard symbol may retrieve word variants: te sach ty nang x hoi. hieu van cham soc va ((hang vai) or (hang va)) ((cua viet) or (ve triet))*.