Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tham thuc » nham thuc, pham thuc, tam thuc
thi hang » thi nang, thi hong, thi thanh
hanh tai » thanh tai, hang tai, han tai
thi hanh » thi thanh
tai cua » thai cua, tai cuc, tri cua
va hanh » van hanh, va thanh, va danh
thuc va » thuc vat, thuc dan, thuc day
tu sach » thu sach, su sach, te sach
va tham » van tham, va cham, va thanh
hieu va » lieu va, hieu qua
cua hoi » cua moi

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((thi hang) OR (thi hanh)) ((cua hoi) OR (xa hoi)). hieu va tham thuc va hanh tai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((thi hang) OR (thi hanh)) ((cua hoi) OR (xa hoi)). hieu va tham thuc va hanh tai cua triet".
• Adding a wildcard symbol may retrieve word variants: tu sach ((thi hang) OR (thi hanh)) ((cua hoi) OR (xa hoi)). hieu va tham thuc va hanh tai cua triet*.