Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
va triet » va thiet, va trien, ve triet
hieu van » hieu va, thien van, lieu va
hanh hoi » hanh thoi, hanh noi, hanh hoa
ban hanh » ban hang
van cham » van chat, van tham, va cham
cham xuc » cam xuc, chat xuc, cham soc
nang xa » nang x, lang xa, nang ma
sach ky » sach y, sach ty, sach kem
xuc ban » duc ban, cuc ban, quoc ban
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach ky) or (sac ky)) nang xa hoi. hieu van cham xuc ban hanh hoi ((cua triet) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sac ky)) nang xa hoi. hieu van cham xuc ban hanh hoi ((cua triet) OR (va triet)).
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sac ky)) nang xa hoi. hieu van cham xuc ban hanh hoi ((cua triet) or (va triet))*.