Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
sach tham » sach nha
va thanh » gia thanh, ban thanh, va tinh
va hanh » van hanh, va danh, ban hanh
cac xuc » cam xuc, cac nuoc, chat xuc
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
tang ma » tang van
di cua » dai cua, doi cua, de cua
ve cac » va cac, vien cac

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 tham ((mang may) or (tang ma)) hoi. hieu ve cac xuc ((va hanh) or (va thanh)) di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach tham ((mang may) OR (tang ma)) hoi. hieu ve cac xuc ((va hanh) OR (va thanh)) di cua triet.
• Adding a wildcard symbol may retrieve word variants: tu sach tham ((mang may) or (tang ma)) hoi. hieu ve cac xuc ((va hanh) or (va thanh)) di cua triet*.