Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
cua triet » cua viet, su triet, va triet
xach tay » canh tay
phan lap » phan dau
day phan » dam phan, duy phan, dan phan
thuc day » thuc dan, thuc vat
lap cua » lai cua, tap cua, lam cua
vu nham » vu kham, vu cham, sua nham
hieu vu » hieu va, hieu ve, hieu su
sach tu » sach thu, cach tu, sach ty
hoi hoi » hoi hoc, hoc hoi, hoi doi
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: su ((xach tay) or (sach tu)) nang ((ho hoi) or (hoi hoi)). hieu vu nham thuc day phan lap cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((xach tay) OR (sach tu)) nang ((ho hoi) OR (hoi hoi)). hieu vu nham thuc day phan lap cua triet.
• Adding a wildcard symbol may retrieve word variants: su ((xach tay) or (sach tu)) nang ((ho hoi) or (hoi hoi)). hieu vu nham thuc day phan lap cua triet*.