Perhaps you should try some spelling variations:
nhanh tinh » nhanh thanh, hanh trinh, nhan sinh
cua triet » cua viet, su triet, va triet
va nhanh » va thanh, va hanh, va nhan
cua tre » cua te, cuu tre, dua tren
cam luc » cam xuc, cau luc
hieu va » lieu va, hieu qua
xay hoi » xa hoi, tay hoi, cay phoi
tu sach » thu sach, su sach, te sach
va cam » va cham, va cac, va cao
va xay » va xac
luc va » duc va, tuc va, loc va
tu sac » tu cac, tu san, tu bac
ke va » te va

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: ((tu sac) OR (tu sach)) ke va xay hoi. hieu va cam luc va nhanh tinh ((cua tre) OR (cua triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) or (tu sach)) ke va xay hoi. hieu va cam luc va nhanh tinh ((cua tre) OR (cua triet))~".
• Adding a wildcard symbol may retrieve word variants: ((tu sac) or (tu sach)) ke va xay hoi. hieu va cam luc va nhanh tinh ((cua tre) OR (cua triet))*.