Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
doanh ban » doanh bat, doanh van, doanh nhan
vay doanh » van doanh, ly doanh, voi doanh
cham luc » cham soc, nhan luc, cham cuu
cua tre » cua te, cuu tre, dua tren
luc vay » luc va, luc van, luoc van
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
ly nang » ky nang, ly hang, ly vang
ve cham » va cham, ve chat, vu cham
y nang » ky nang, v nang, may 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) or (ly nang)) xa hoi. hieu ve cham luc vay doanh ban ((cua tre) OR (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((y nang) OR (ly nang)) xa hoi. hieu ve cham luc vay doanh ban ((cua tre) OR (cua triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((y nang) or (ly nang)) xa hoi. hieu ve cham luc vay doanh ban ((cua tre) OR (cua triet))*".