Perhaps you should try some spelling variations:
chau triet » cua triet, cau trieu, chau tuyet
cau triet » cau trieu, su triet, cua triet
nhan luc » nang luc
hanh lai » hanh lam, hanh tai, thanh lap
su sach » so sach, vu sach
hieu vu » hieu va, hieu ve, hieu su
vu nhan » cu nhan, vu ngan, tu nhan
va hanh » van hanh, va thanh, va danh
y nang » ly nang, v nang, may nang
luc va » duc va, tuc va, loc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ((y nang) or (ky nang)) xa hoi. hieu vu nhan luc va hanh lai ((chau triet) OR (cau triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((y nang) OR (ky nang)) xa hoi. hieu vu nhan luc va hanh lai ((chau triet) OR (cau triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((y nang) or (ky nang)) xa hoi. hieu vu nhan luc va hanh lai ((chau triet) OR (cau triet))".
• Adding a wildcard symbol may retrieve word variants: su sach ((y nang) or (ky nang)) xa hoi. hieu vu nhan luc va hanh lai ((chau triet) OR (cau triet))*.