Perhaps you should try some spelling variations:
tham thuc » nham thuc, pham thuc, tam thuc
su triet » su viet, su tien, ve triet
su sach » so sach, vu sach
hoc anh » hoc nganh, hoc nhanh, ngoc anh
hieu ve » hieu va, hieu van
ve tham » va tham, ve cham, vi tham
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
x hoi » xa hoi, o hoi, x ho
vi su » va su, ve su, ki su

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) or (hoc anh)) ky nang x hoi. hieu ve tham thuc va hanh vi su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (hoc anh)) ky nang x hoi. hieu ve tham thuc va hanh vi su triet.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (hoc anh)) ky nang x hoi. hieu ve tham thuc va hanh vi su triet*.