Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
dang xay » dang van, van xay
hanh vai » hanh vi, hanh va, hanh tai
hieu van » hieu va, thien van, lieu va
sach ky » sac ky, sach y, sach ty
lang xa » lang ha, lang van
van cau » van dau, van hau, van chat
xa hanh » xa thanh, xa khanh, va hanh
vai cua » dai cua, hai cua, lai cua
tu sach » thu sach, su sach, te sach
cau tu » dau tu, cau truc
tu xa » tu xay, tu va, te xa

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 ky ((lang xa) OR (dang xay)) hoi. hieu van cau tu xa hanh vai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky ((lang xa) OR (dang xay)) hoi. hieu van cau tu xa hanh vai cua triet".
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((lang xa) OR (dang xay)) hoi. hieu van cau tu xa hanh vai cua triet*.