Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
danh vai » danh sai, danh va, doanh van
so sach » so sanh, bo sach, co sach
ky dang » ky nang
ky danh » ky anh
hieu va » lieu va, hieu qua
cau tuc » cau truc, cau tu, cau luc
va danh » va dinh, va dan, va hanh
vai cua » dai cua, hai cua, lai cua
va cau » van cau, va cac, va dau
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ((ky dang) or (ky danh)) xa hoi. hieu va cau tuc va danh vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ((ky dang) OR (ky danh)) xa hoi. hieu va cau tuc va danh vai cua triet.
• Adding a wildcard symbol may retrieve word variants: so sach ((ky dang) or (ky danh)) xa hoi. hieu va cau tuc va danh vai cua triet*.