Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh hanh » hanh han, xanh hanh, nhanh thanh
luu hanh » huu han
tinh luu » binh luu, hinh luu, tinh huu
hieu may » lieu may, chieu day, hieu manh
lang ha » long ha
nang xa » nang x, lang xa, nang ma
tu san » thu san, tu ban, tu can
vi cua » vai cua, di cua
tu sai » tu bai, tu cai, tu lai

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 sai) OR (tu san)) ky ((nang xa) OR (lang ha)) hoi. hieu may tinh luu hanh hanh vi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sai) OR (tu san)) ky ((nang xa) or (lang ha)) hoi. hieu may tinh luu hanh hanh vi cua triet~".
• Adding a wildcard symbol may retrieve word variants: ((tu sai) OR (tu san)) ky ((nang xa) or (lang ha)) hoi. hieu may tinh luu hanh hanh vi cua triet*.