Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van thanh » ban thanh, van tuan
hieu van » hieu va, thien van, lieu va
van hanh » ban hanh, van anh, van ban
nang xa » nang x, lang xa, nang ma
tu sac » tu sach, tu cac, tu bac
tu san » thu san, tu ban, tu can
di cua » dai cua, doi cua, de 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 sac) OR (tu san)) ky nang xa hoi. hieu van nam cua ((van hanh) or (van thanh)) di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu san)) ky nang xa hoi. hieu van nam cua ((van hanh) OR (van thanh)) di cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) OR (tu san)) ky nang xa hoi. hieu van nam cua ((van hanh) or (van thanh)) di cua triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sac) OR (tu san)) ky nang xa hoi. hieu van nam cua ((van hanh) or (van thanh)) di cua triet*.