Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cham thuc » nham thuc, pham thuc, tham thuc
phan tap » phan lap, pha tap, phan tu
thuc van » thuc vat, thuc dan, thuc va
thu sach » tu sach, thuat sach, thuoc sach
hoc hoi » hoc khoi, hoc hoa, hoc noi
hieu vu » hieu va, hieu ve, hieu su
han tap » han tai, toan tap, nhan tai
vu cham » va cham, vu kham, tu cham
sach v » sach va, sach y, sach 2
ho hoi » hoa hoi, hoi hoi, co hoi
v nang » va nang, vu nang, van nang

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

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