Perhaps you should try some spelling variations:
tai nhanh » tai thanh, thai thanh, tai chinh
ve triet » va trien, su triet
tai hanh » tai thanh, thi hanh, tai anh
vu triet » su triet, va triet, tu triet
hanh lam » thanh lap, hanh kem, hanh va
va hanh » van hanh, va thanh, va danh
tu sach » thu sach, su sach, te sach
cam luc » cam xuc, cau luc
hieu ve » hieu va, hieu van
luc va » duc va, tuc va, loc va
ve cam » ve cham, ve cac, va cam

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 sach ((tai hanh) OR (tai nhanh)) xa hoi. hieu ve cam luc va hanh lam ((vu triet) OR (ve triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((tai hanh) OR (tai nhanh)) xa hoi. hieu ve cam luc va hanh lam ((vu triet) or (ve triet))~".
• Adding a wildcard symbol may retrieve word variants: tu sach ((tai hanh) OR (tai nhanh)) xa hoi. hieu ve cam luc va hanh lam ((vu triet) or (ve triet))*.