Perhaps you should try some spelling variations:
trinh dan » trinh han, trinh san, trinh da
cua trinh » qua trinh, cua tinh, xuan trinh
su triet » su viet, su tien, ve triet
ty hang » ly hang, thi hang, thu hang
hieu ve » hieu va, hieu van
ty nang » ky nang, ly nang, ty nong
tu sach » thu sach, su sach, te sach
ve nam » he nam, va nam, le nam
nam tu » nam thu, nam thuc
tu cua » hu cua, vu cua
dan su » dang su
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 nang) or (ty xang))) or (ty hang)) x hoi. hieu ve nam tu cua trinh dan su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((((ty nang) OR (ty xang))) OR (ty hang)) x hoi. hieu ve nam tu cua trinh dan su triet.
• Adding a wildcard symbol may retrieve word variants: tu sach ((((ty nang) or (ty xang))) or (ty hang)) x hoi. hieu ve nam tu cua trinh dan su triet*.