Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
cua viet » ca viet, hoa viet, cua vat
phan lap » phan dau
hoc hoi » hoc khoi, hoc hoa, hoc noi
sach ty » sach y, sach tu, sach thu
hieu vu » hieu va, hieu ve, hieu su
vu nham » vu kham, vu cham, sua nham
thuc va » thuc vat, thuc dan, thuc day
va phan » van phan, va phat, va phap
ty nang » ky nang, ty xang, ty hang
lap cua » lai cua, tap cua, lam cua
su sach » so sach, vu sach
ho hoi » hoa hoi, hoi 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 sach ty nang ((ho hoi) OR (hoc hoi)). hieu vu nham thuc va phan lap cua viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty nang ((ho hoi) OR (hoc hoi)). hieu vu nham thuc va phan lap cua viet".
• Adding a wildcard symbol may retrieve word variants: su sach ty nang ((ho hoi) OR (hoc hoi)). hieu vu nham thuc va phan lap cua viet*.