Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh lap » thanh san, phan lap, thanh hai
dang xay » dang van, van xay
lap cua » lai cua, tap cua, lam cua
cac ban » cac dan, cac van, can ban
cuc ban » cua ban, cuu ban, duc ban
so sanh » do sanh
xay hoi » xa hoi, tay hoi, cay phoi
hieu va » lieu va
sanh y » sinh y, anh y, hanh y
y dang » ky dang, 2 dang, _ dang

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sanh y dang xay hoi. ((hieu va) or (hieu qua)) cac ((cuc ban) or (cac ban)) thanh lap cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh y dang xay hoi. ((hieu va) OR (hieu qua)) cac ((cuc ban) OR (cac ban)) thanh lap cua triet.
• Adding a wildcard symbol may retrieve word variants: so sanh y dang xay hoi. ((hieu va) or (hieu qua)) cac ((cuc ban) or (cac ban)) thanh lap cua triet*.