Perhaps you should try some spelling variations:
doanh than » doanh thanh, doanh nhan, doanh phan
cua triet » cua viet, su triet
nang mai » nang ma, nang tai, lang mai
hieu van » hieu va, thien van, lieu va
va doanh » van doanh, vay doanh, va danh
va triet » va thiet, va trien, ve triet
te sach » toc sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
mai hoi » mai khoi, dai hoi, lai hoi
van cam » van nam, van lam, van cau
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ty nang mai hoi. hieu van cam xuc va doanh than ((cua triet) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang mai hoi. hieu van cam xuc va doanh than ((cua triet) OR (va triet)).
• Adding a wildcard symbol may retrieve word variants: te sach ty nang mai hoi. hieu van cam xuc va doanh than ((cua triet) or (va triet))*.