Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
doanh van » doan van, doanh va, doanh ban
cham cuu » cap cuu, chat cua
cham luc » cham soc, nhan luc, chat lua
va doanh » van doanh, vay doanh, va danh
cua tre » cua te, cuu tre, dua tren
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
y nang » ky nang, ly nang, v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y nang xa hoi. hieu ve ((cham luc) OR (cham cuu)) va doanh van ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang xa hoi. hieu ve ((cham luc) OR (cham cuu)) va doanh van ((cua tre) OR (cua triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang xa hoi. hieu ve ((cham luc) OR (cham cuu)) va doanh van ((cua tre) or (cua triet))*".