Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
cua triet » cua viet, su triet, va triet
thuc van » thuc vat, thuc dan, thuc va
van phan » van phong, van thanh, luan phan
phan lai » phan loai, phan lap, phan lan
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
nang ho » nang hoc, nang co, tang ho
hieu vu » hieu va, hieu ve, hieu su
vu nham » vu kham, vu cham, sua nham
lai cua » dai cua, hai cua, lai chau
y nang » ky nang, ly nang, v nang
ho hoi » hoc hoi, hoa hoi, hoi hoi

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

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