Perhaps you should try some spelling variations:
tinh nien » tinh dien, tinh hien, tinh kien
tang van » dang van, hoang van, trong van
su triet » su viet, su tien, ve triet
hieu va » lieu va, hieu qua
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
va nam » van nam, ha nam, va nay
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 ((mang may) or (tang van)) hoi. hieu va nam luc va tinh nien su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((mang may) OR (tang van)) hoi. hieu va nam luc va tinh nien su triet.
• Adding a wildcard symbol may retrieve word variants: tu sac ky ((mang may) or (tang van)) hoi. hieu va nam luc va tinh nien su triet*.