Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh lap » thanh san, phan lap, thanh hai
lap cua » lai cua, tap cua, lam cua
cac ban » cac dan, cac van, can ban
cuc ban » cua ban, cuu ban, duc ban
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
lang ha » long ha
lang xa » dang xay, lang van

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sach _ ((lang xa) OR (lang ha)) hoi. hieu va cac ((cuc ban) or (cac ban)) thanh lap cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach _ ((lang xa) OR (lang ha)) hoi. hieu va cac ((cuc ban) OR (cac ban)) thanh lap cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach _ ((lang xa) OR (lang ha)) hoi. hieu va cac ((cuc ban) or (cac ban)) thanh lap cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach _ ((lang xa) OR (lang ha)) hoi. hieu va cac ((cuc ban) or (cac ban)) thanh lap cua triet*.