Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tay lang » tai lang, tay tang, tay quang
cau thuc » cau truc, cuu thuc, can thuc
vat hanh » vat thanh, van hanh, va hanh
hanh vai » hanh vi, hanh va, hanh tai
vu sach » vu bach, su sach, vu khach
ty lang » ty xang, ty hang, tu lang
hieu ke » hieu kem, chieu ke, hieu ky
vai cua » dai cua, hai cua, lai cua
ke cau » ket cau

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 ((ty lang) OR (tay lang)) xa hoi. hieu ke cau thuc vat hanh vai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ((ty lang) OR (tay lang)) xa hoi. hieu ke cau thuc vat hanh vai cua triet".
• Adding a wildcard symbol may retrieve word variants: vu sach ((ty lang) OR (tay lang)) xa hoi. hieu ke cau thuc vat hanh vai cua triet*.