Perhaps you should try some spelling variations:
lang mai » lang dai, lang hai, lang man
quoc ban » quoc bao, quoc lan, quoc quan
ky lang » ky nang, ky dang, ky tang
mai hoi » mai khoi, dai hoi, lai hoi
hieu va » lieu va, hieu qua
va chat » van chat, va phat, cao chat
xuc ban » duc ban, cuc ban, xuat ban
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
vi cua » vai cua, di cua
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 san ky lang mai hoi. hieu va chat ((xuc ban) or (quoc ban)) hanh vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky lang mai hoi. hieu va chat ((xuc ban) OR (quoc ban)) hanh vi cua tu.
• Adding a wildcard symbol may retrieve word variants: tu san ky lang mai hoi. hieu va chat ((xuc ban) or (quoc ban)) hanh vi cua tu*.