Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh lap » thanh san, phan lap, thanh hai
ban thanh » ban hanh, ban hang
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
lap cua » lai cua, tap cua, lam cua
su sach » so sach, vu sach
hieu va » lieu va
lang xa » lang ha, dang xay, lang van
cac cuc » cac cuoc, cac cua, cac cach
y lang » o lang, _ lang, tay lang

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