Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nham thuc » nhan thuc, nam thuc, nham thu
phan dau » phan tu, hang dau
day phan » dam phan, duy phan, dan phan
thuc day » thuc dan, thuc vat
nang hoc » nang doc, nang luc, dong hoc
sach ty » sach y, sach tu, sach thu
hieu vu » hieu va, hieu ve, hieu su
vu nham » vu kham, vu cham, sua nham
nang ho » nang co, tang ho, nang cao
dau cua » dai cua, day cua, cau cua
su sach » so sach, vu sach

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

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