Perhaps you should try some spelling variations:
thien van » thi van
tinh viec » tinh viet, dinh viec, sinh viec
cua triet » cua viet, su triet, va triet
hieu van » hieu va, lieu va, hieu ve
ky sang » ky dang, ky tang, duy sang
nam luc » nang luc, nhan luc, nam thuc
va tinh » may tinh
tu sac » tu sach, tu cac, tu san
ma hoi » mai hoi, xa hoi, ma hoa
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: tu sac ((ky sang) OR (ky nang)) ma hoi. ((hieu van) or (thien van)) nam luc va tinh viec cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ((ky sang) OR (ky nang)) ma hoi. ((hieu van) OR (thien van)) nam luc va tinh viec cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ((ky sang) OR (ky nang)) ma hoi. ((hieu van) or (thien van)) nam luc va tinh viec cua triet".
• Adding a wildcard symbol may retrieve word variants: tu sac ((ky sang) OR (ky nang)) ma hoi. ((hieu van) or (thien van)) nam luc va tinh viec cua triet*.