Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
thanh di » thanh doi, thanh de, thanh do
va thanh » gia thanh, ban thanh, va tinh
va pham » van pham, va phat, va phap
sach tu » sach thu, sach ty, sach uu
nang xa » nang x, lang xa, nang ma
cach tu » cach thuc
hieu va » lieu va, hieu qua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach tu) OR (cach tu)) nang xa hoi. hieu va pham duc va thanh di ((cua triet) OR (su triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach tu) or (cach tu)) nang xa hoi. hieu va pham duc va thanh di ((cua triet) OR (su triet))~".
• Adding a wildcard symbol may retrieve word variants: tu ((sach tu) or (cach tu)) nang xa hoi. hieu va pham duc va thanh di ((cua triet) OR (su triet))*.