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
hieu van » hieu va, thien van, hieu ve
thu sach » thuat sach, thuoc sach, thu hoach
ty lang » tay lang, ty xang, ty hang
lang xa » lang ha, dang xay, lang van
hac xuc » chat xuc
xuc ban » duc ban, cuc ban, quoc ban
lap cua » lai cua, tap cua, lam cua
tu sach » su sach, te sach, tu cach

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