Perhaps you should try some spelling variations:
hang tai » hang va, dung tai
hieu van » hieu va, thien van, lieu va
van chao » van chat, van hao, van cho
ban hanh » ban hang
ky hang » ky nang, ly hang, ky dang
tai hoi » tai khoi, dai hoi, tai hai
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
xu ban » xuc ban, tu ban, vu ban
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky hang tai hoi. hieu van chao xu ban hanh vi ((cua te) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky hang tai hoi. hieu van chao xu ban hanh vi ((cua te) OR (cua tu)).
• Adding a wildcard symbol may retrieve word variants: tu sac ky hang tai hoi. hieu van chao xu ban hanh vi ((cua te) or (cua tu))*.