Perhaps you should try some spelling variations:
pham thuc » phap thuc, pham chuc, nham thuc
cua triet » cua viet, su triet, va triet
toc sach » hoc sach, doc sach, thuoc sach
thuc ban » thuoc ban, thuc dan, thu ban
ban hanh » ban hang
hanh dai » hanh tai, hanh dao, vanh dai
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
hieu vi » hieu voi, hieu va, hieu ve
dai cua » doi cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ty nang xa hoi. hieu vi pham thuc ban hanh dai cua triet~.
• Adding a wildcard symbol may retrieve word variants: toc sach ty nang xa hoi. hieu vi pham thuc ban hanh dai cua triet*.