Perhaps you should try some spelling variations:
nhan luc » nang luc
va danh » va dinh, va dan, va hanh
ve nhan » ve nha, de nhan, va nhan
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
ly hang » ly quang
luc va » duc va, tuc va, loc va
va cuu » va cau, va chu
va huu » vu huu

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 ((ty xang) or (ly hang)) xa hoi. hieu ve nhan luc va danh ((va cuu) OR (va huu)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ty xang) OR (ly hang)) xa hoi. hieu ve nhan luc va danh ((va cuu) OR (va huu)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ty xang) or (ly hang)) xa hoi. hieu ve nhan luc va danh ((va cuu) OR (va huu)) tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ((ty xang) or (ly hang)) xa hoi. hieu ve nhan luc va danh ((va cuu) OR (va huu)) tre*.