Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tinh vai » tinh va, tinh hai, tinh bai
vu sach » vu bach, su sach, vu khach
hieu va » lieu va, hieu qua
va tinh » may tinh
vai cua » dai cua, hai cua, lai cua
va cam » va cham, va cac, va cao
cam tu » cam thu, nam tu, dam tu
x hoi » xa hoi, o hoi, 5 hoi

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (duy khanh)) ky nang ((x hoi) OR (x ho)). hieu va cam tu va tinh vai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) or (duy khanh)) ky nang ((x hoi) OR (x ho)). hieu va cam tu va tinh vai cua triet~".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) or (duy khanh)) ky nang ((x hoi) OR (x ho)). hieu va cam tu va tinh vai cua triet*.