Perhaps you should try some spelling variations:
tham thuc » nham thuc, pham thuc, tam thuc
thu sach » tu sach, thuat sach, thuoc sach
va triet » va thiet, va trien, ve triet
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 » o hoi, x ho, 5 hoi
vi va » vi van, vai va, vu va

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