Perhaps you should try some spelling variations:
pham thuc » phap thuc, pham chuc, nham thuc
cua triet » su triet, va triet
ban thanh » ban hanh, ban hang
cua viet » ca viet, hoa viet, cua vat
thanh do » thanh de, thanh pho, thanh hoa
thuc ban » thuoc ban, thuc dan, thu ban
va pham » van pham, va phat, va phap
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
lai ky » sai ky
dai ky » dan ky, dai ly, sai ky

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: te ((lai ky) OR (dai ky)) nang xa hoi. hieu va pham thuc ban thanh do ((cua triet) OR (cua viet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((lai ky) OR (dai ky)) nang xa hoi. hieu va pham thuc ban thanh do ((cua triet) or (cua viet))~".
• Adding a wildcard symbol may retrieve word variants: te ((lai ky) OR (dai ky)) nang xa hoi. hieu va pham thuc ban thanh do ((cua triet) or (cua viet))*.