Perhaps you should try some spelling variations:
tinh viec » tinh viet, dinh viec, sinh viec
cua triet » cua viet, su triet, va triet
mai khoi » mai khoa, tai khoa, cac khoi
hieu van » hieu va, thien van, lieu va
lai hoi » dai hoi, lai hoa, lai roi
nam luc » nang luc, nhan luc, nam thuc
va tinh » may tinh
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
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 nang ((mai khoi) or (lai hoi)). hieu van nam luc va tinh viec cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang ((mai khoi) OR (lai hoi)). hieu van nam luc va tinh viec cua triet.
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang ((mai khoi) or (lai hoi)). hieu van nam luc va tinh viec cua triet*.