Perhaps you should try some spelling variations:
tan hanh » tan thanh, tang hanh, toan hanh
hanh vai » hanh vi, hanh va, hanh tai
su triet » su viet, su tien, ve triet
tu sach » thu sach, su sach, te sach
sach ly » sach y, sach lo, sach ty
ly nang » ky nang, ly hang, ly vang
hieu va » lieu va, hieu qua
va pham » van pham, va phat, va phap
cua tre » cua te, cuu tre, cua triet
x hoi » xa hoi, o hoi, x ho

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 ly nang x hoi. hieu va pham duc tan hanh vai ((cua tre) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ly nang x hoi. hieu va pham duc tan hanh vai ((cua tre) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: tu sach ly nang x hoi. hieu va pham duc tan hanh vai ((cua tre) or (su triet))*.