Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
va triet » va thiet, va trien, ve triet
ban hang » ngan hang
cham xuc » cam xuc, chat xuc, cham soc
tang van » dang van, hoang van, trong van
hieu va » lieu va, hieu qua
va cham » va chat, va tham
sach ky » sac ky, sach y, sach ty
xuc ban » duc ban, cuc ban, quoc ban
hang vi » hang va, hanh vi, hang di
tu sach » thu sach, su sach, te sach

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 ((nang cao) or (tang van)) hoi. hieu va cham xuc ban hang vi ((cua triet) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((nang cao) OR (tang van)) hoi. hieu va cham xuc ban hang vi ((cua triet) OR (va triet)).
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((nang cao) or (tang van)) hoi. hieu va cham xuc ban hang vi ((cua triet) or (va triet))*.