Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, pham thuc
cua triet » cua viet, su triet, va triet
nham thu » nam thu, pham thu, nhan thuc
day phan » dam phan, duy phan, dan phan
phan lap » phan dau
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
lap cua » lai cua, tap cua, lam cua
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) OR (nham thu)) day phan lap 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) OR (nham thu)) day phan lap cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach ty nang ho hoi. hieu vu ((nham thuc) OR (nham thu)) day phan lap cua triet*.