Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
thuc day » thuc dan, thuc vat
day phan » dam phan, duy phan, dan phan
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang ho » nang hoc, nang co, tang ho
hieu vu » hieu va, hieu ve, hieu su
vu nham » vu kham, vu cham, sua nham
lap cua » tap cua, lam cua, ap cua
lai cua » dai cua, hai cua, lai chau
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: su sach ty nang ho hoi. hieu vu nham thuc day phan ((lap cua) OR (lai cua)) triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty nang ho hoi. hieu vu nham thuc day phan ((lap cua) OR (lai cua)) triet".
• Adding a wildcard symbol may retrieve word variants: su sach ty nang ho hoi. hieu vu nham thuc day phan ((lap cua) OR (lai cua)) triet*.