Perhaps you should try some spelling variations:
nang tai » hang tai, tang tai, sang tai
hieu van » hieu va, thien van, lieu va
van chao » van chat, van hao, van cho
ban hanh » ban hang
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 cu, cua vu
cua su » qua su

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 nang tai hoi. hieu van chao xu ban hanh vi ((cua te) or (((cua tu) OR (cua su))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang tai hoi. hieu van chao xu ban hanh vi ((cua te) OR (((cua tu) OR (cua su)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang tai hoi. hieu van chao xu ban hanh vi ((cua te) or (((cua tu) OR (cua su))))".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang tai hoi. hieu van chao xu ban hanh vi ((cua te) or (((cua tu) OR (cua su))))*.