Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
va triet » va thiet, va trien, ve triet
hanh cua » manh cua, hang cua, hanh sua
van hanh » van thanh, ban hanh, van anh
so sach » so sanh, bo sach, co sach
sach ty » sach y, sach tu, sach thu
cam luc » cau luc
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang

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 ty nang xa hoi. hieu ve ((cam luc) or (cam xuc)) van hanh cua ((cua triet) OR (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ty nang xa hoi. hieu ve ((cam luc) OR (cam xuc)) van hanh cua ((cua triet) OR (va triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ty nang xa hoi. hieu ve ((cam luc) or (cam xuc)) van hanh cua ((cua triet) OR (va triet))".
• Adding a wildcard symbol may retrieve word variants: so sach ty nang xa hoi. hieu ve ((cam luc) or (cam xuc)) van hanh cua ((cua triet) OR (va triet))*.