Perhaps you should try some spelling variations:
doanh bat » danh bat, doanh va
va triet » va thiet, va trien, ve triet
cham xuc » cam xuc, chat xuc, cham soc
tu sach » thu sach, te sach, tu cach
hieu va » lieu va, hieu qua
cao hoc » co hoc, cho hoc, chat hoc
su sach » so sach, vu sach
va cham » va chat, va tham
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: ((tu sach) or (su sach)) ky nang cao hoc. hieu va cham xuc va ((doanh bat) OR (doanh tai)) va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky nang cao hoc. hieu va cham xuc va ((doanh bat) OR (doanh tai)) va triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (su sach)) ky nang cao hoc. hieu va cham xuc va ((doanh bat) OR (doanh tai)) va triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ky nang cao hoc. hieu va cham xuc va ((doanh bat) OR (doanh tai)) va triet*.