Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh lap » thanh san, phan lap, thanh hai
hanh lai » hanh lam, hanh tai, thanh loi
so sach » so sanh, bo sach, co sach
sang ma » tang ma, nang ma, sang tao
hieu ve » hieu va, hieu van
cam tuc » cam xuc, cam tu, nam thuc
ve cam » ve cham, ve cac, va cam
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach y ((mang may) or (sang ma)) hoi. hieu ve cam tuc va ((hanh lai) OR (thanh lap)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y ((mang may) OR (sang ma)) hoi. hieu ve cam tuc va ((hanh lai) OR (thanh lap)) cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach y ((mang may) or (sang ma)) hoi. hieu ve cam tuc va ((hanh lai) OR (thanh lap)) cua triet*".