Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
cua triet » cua viet, su triet, va triet
thu sach » thuat sach, thuoc sach, thu hoach
nang mai » nang ma, nang tai, lang mai
va doanh » van doanh, vay doanh, va danh
tu sach » su sach, te sach, tu cach
mai hoi » mai khoi, dai hoi, lai hoi
hieu va » lieu va, hieu qua
van cua » vang cua, ban cua, dan cua
co xuc » co xuoc, co xua
xuc va » duc va, tuc va, luc va
va co » vo co

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