Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nham thuc » nhan thuc, nam thuc, pham thuc
ngoc anh » ngu anh
nham thu » nam thu, pham thu, nhan thuc
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
hieu vu » hieu va, hieu ve, hieu su
va hanh » van hanh, va thanh, va danh
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: ((tu sach) or (ngoc anh)) ky nang xa hoi. hieu vu ((nham thuc) OR (nham thu)) va hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (ngoc anh)) ky nang xa hoi. hieu vu ((nham thuc) OR (nham thu)) va hanh vi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (ngoc anh)) ky nang xa hoi. hieu vu ((nham thuc) OR (nham thu)) va hanh vi cua triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (ngoc anh)) ky nang xa hoi. hieu vu ((nham thuc) OR (nham thu)) va hanh vi cua triet*.