Perhaps you should try some spelling variations:
thanh kim » thanh liem, thanh kinh, khanh kiem
su triet » su viet, su tien, ve triet
hieu van » hieu va, thien van, lieu va
thanh ki » thanh ky, thanh ke, thanh kinh
nang van » dang van, tang van, lang van
sach ky » sach y, sach ty, sach kem
van hoi » van hoa, van hoc, van hoe
nam luc » nang luc, nhan luc, nam thuc
luc va » duc va, tuc va, loc va
sac ky » cac ky, sai ky

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ky) or (sac ky)) nang van hoi. hieu van nam luc va ((thanh ki) OR (thanh kim)) su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (sac ky)) nang van hoi. hieu van nam luc va ((thanh ki) OR (thanh kim)) su triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ky) or (sac ky)) nang van hoi. hieu van nam luc va ((thanh ki) OR (thanh kim)) su triet*".