Perhaps you should try some spelling variations:
vai triet » va trien, ve triet, tai thiet
thu sach » tu sach, thuat sach, thuoc sach
doanh va » doan va, doanh tai, doanh cua
va doanh » van doanh, vay doanh, va danh
nhan luc » nang luc
va triet » va thiet, va trien, ve triet
hieu ve » hieu va, hieu van
ve nhan » ve nha, de nhan, va nhan
ky dang » ky nang, ky danh
ky lang » ky nang, ky tang, tay lang
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: thu sach ((ky lang) or (ky dang)) xa hoi. hieu ve nhan luc va doanh va ((vai triet) OR (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((ky lang) OR (ky dang)) xa hoi. hieu ve nhan luc va doanh va ((vai triet) OR (va triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ((ky lang) or (ky dang)) xa hoi. hieu ve nhan luc va doanh va ((vai triet) OR (va triet))*".