Perhaps you should try some spelling variations:
manh gianh » manh giang, manh binh, manh tinh
gianh dai » gianh lai, gian dan, giang day
cua viet » ca viet, hoa viet, cua vat
duc manh » suc manh, duc anh, duc minh
cham duc » pham duc, cham soc, pham duy
hieu va » lieu va, hieu qua
tu sach » thu sach, su sach, te sach
hieu ve » hieu van
ty hang » ly hang, thi hang, thu hang
x hoi » xa hoi, o hoi, x ho

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 ((ty xang) or (ty hang)) x hoi. ((hieu ve) or (hieu va)) cham duc manh gianh dai cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ty xang) OR (ty hang)) x hoi. ((hieu ve) OR (hieu va)) cham duc manh gianh dai cua viet.
• Adding a wildcard symbol may retrieve word variants: tu sach ((ty xang) or (ty hang)) x hoi. ((hieu ve) or (hieu va)) cham duc manh gianh dai cua viet*.