Perhaps you should try some spelling variations:
hanh cong » thanh cong, hang cong, hanh dong
cu triet » cua triet, cau triet, tu triet
su triet » su viet, su tien, ve triet
tu sach » thu sach, su sach, te sach
cao hoc » co hoc, cho hoc, chat hoc
va hanh » van hanh, va thanh, va danh
y nang » ky nang, ly nang, v nang
va hoc » van hoc
nuoc » quoc, duoc, ngoc

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 y nang cao hoc. lieu va hoc nuoc va hanh cong ((cu triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang cao hoc. lieu va hoc nuoc va hanh cong ((cu triet) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: tu sach y nang cao hoc. lieu va hoc nuoc va hanh cong ((cu triet) or (su triet))*.