Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tinh viec » tinh viet, dinh viec, sinh viec
hieu van » hieu va, thien van, lieu va
nang xa » lang xa, nang ma, mang xa
nam xuc » cam xuc, nam xua, nam thuc
xuc may » xuc hay, truc may, phuc may
tu sac » tu sach, tu san, tu bac

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 cac)) ky ((nang xa) OR (nang x)) hoi. hieu van nam xuc may tinh viec cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu cac)) ky ((nang xa) OR (nang x)) hoi. hieu van nam xuc may tinh viec cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) or (tu cac)) ky ((nang xa) OR (nang x)) hoi. hieu van nam xuc may tinh viec cua triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sac) or (tu cac)) ky ((nang xa) OR (nang x)) hoi. hieu van nam xuc may tinh viec cua triet*.