Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh ve » hanh ve, thanh va, thanh vien
cau tren » cu tren, dau tren, ca tren
thu sach » tu sach, thuat sach, thuoc sach
sang ma » tang ma, nang ma, sang tao
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
soc gia » toc gia, hoc gia, so gia
lang xa » lang ha, 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: thu sach ky ((lang xa) or (sang ma)) hoi. hieu ve cham soc gia thanh ve ((cau tren) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky ((lang xa) OR (sang ma)) hoi. hieu ve cham soc gia thanh ve ((cau tren) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: thu sach ky ((lang xa) or (sang ma)) hoi. hieu ve cham soc gia thanh ve ((cau tren) or (cua triet))*.