Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thien van » thi van
va triet » va thiet, va trien, ve triet
cua viet » ca viet, hoa viet, cua vat
thanh vi » hanh vi, thanh va, thanh ve
sang kyo » sang ky, sang tao, dang ky
luc van » luoc van, luu van, duc van
nam luc » nang luc, nhan luc, nam thuc
cao hoc » co hoc, cho hoc, chat hoc
ban ky » van ky, dan ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((ban ky) or (sang kyo)) nang cao hoc. thien van nam luc van thanh vi ((cua viet) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((ban ky) OR (sang kyo)) nang cao hoc. thien van nam luc van thanh vi ((cua viet) OR (va triet)).
• Adding a wildcard symbol may retrieve word variants: te ((ban ky) or (sang kyo)) nang cao hoc. thien van nam luc van thanh vi ((cua viet) or (va triet))*.