Perhaps you should try some spelling variations:
tham thuc » nham thuc, pham thuc, tam thuc
cua triet » cua viet, su triet, va triet
sach kem » hanh kem
thuc ban » thuoc ban, thuc dan, thu ban
ban hang » ngan hang
sang ma » tang ma, nang ma, sang tao
hieu va » lieu va, hieu qua
va tham » van tham, va cham, va thanh
hang vi » hang va, hanh vi, hang di
ma hoi » mai hoi, xa hoi, ma hoa
vi cua » vai cua, di cua

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 kem) or (sach y)) sang ma hoi. hieu va tham thuc ban hang vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach kem) OR (sach y)) sang ma hoi. hieu va tham thuc ban hang vi cua triet.
• Adding a wildcard symbol may retrieve word variants: thu ((sach kem) or (sach y)) sang ma hoi. hieu va tham thuc ban hang vi cua triet*.