Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
va thanh » gia thanh, ban thanh, va tinh
thanh de » hanh de, thanh ve, thanh do
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
va pham » van pham, va phap, va phan
ma hoi » mai hoi, xa hoi, ma hoa
de cua » le cua, te cua, dieu cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ky nang ma hoi. hieu ((va pham) OR (va phat)) duc va thanh de cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ky nang ma hoi. hieu ((va pham) OR (va phat)) duc va thanh de cua triet".
• Adding a wildcard symbol may retrieve word variants: vu sach ky nang ma hoi. hieu ((va pham) OR (va phat)) duc va thanh de cua triet*.