Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
cua triet » cua viet, su triet, va triet
sach van » sach han, sach va, bach van
van nang » van quang, van ban, van dong
phat lap » phan lap, phap lap, phat lam
te sach » toc sach
hoi hoi » hoi hoc, hoc hoi, hoi doi
hieu vu » hieu va, hieu ve, hieu su
vu nham » vu kham, vu cham, sua nham
thuc va » thuc vat, thuc dan, thuc day
lap cua » lai cua, tap cua, lam cua
ho hoi » hoc hoi, hoa hoi, co hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach van nang ((ho hoi) or (hoi hoi)). hieu vu nham thuc va phat lap cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach van nang ((ho hoi) OR (hoi hoi)). hieu vu nham thuc va phat lap cua triet.
• Adding a wildcard symbol may retrieve word variants: te sach van nang ((ho hoi) or (hoi hoi)). hieu vu nham thuc va phat lap cua triet*.