Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nuoc sach » nguoi sach, hoc sach, cuoc cach
nhan luc » nang luc
cham luc » cham soc, cham cuu, chat lua
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
hieu vu » hieu va, hieu ve, hieu su
tu sach » thu sach, su sach, te sach
lang ha » long ha
ky lang » ky nang, ky dang, ky tang
ha hoi » hoa hoi, ha noi, xa hoi
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 (nuoc sach)) ky lang ha hoi. hieu vu ((cham luc) OR (nhan luc)) va danh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (nuoc sach)) ky lang ha hoi. hieu vu ((cham luc) OR (nhan luc)) va danh vi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (nuoc sach)) ky lang ha hoi. hieu vu ((cham luc) OR (nhan luc)) va danh vi cua triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (nuoc sach)) ky lang ha hoi. hieu vu ((cham luc) OR (nhan luc)) va danh vi cua triet*.