Perhaps you should try some spelling variations:
van nhan » van phan, van thanh, danh nhan
hieu van » hieu va, thien van, lieu va
thai cua » than cua, tai cuc, tri cua
va thanh » gia thanh, ban thanh, va tinh
nhan luc » nang luc
vai cua » dai cua, hai cua, lai cua
tu sach » thu sach, te sach, tu cach
nang xa » nang x, lang xa, nang ma
su sach » so sach, vu sach
luc va » duc va, tuc va, loc va
v nang » va nang, vu nang, van 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) OR (su sach)) v nang xa hoi. hieu van nhan luc va thanh ((vai cua) or (thai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) v nang xa hoi. hieu van nhan luc va thanh ((vai cua) OR (thai cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (su sach)) v nang xa hoi. hieu van nhan luc va thanh ((vai cua) or (thai cua)) tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (su sach)) v nang xa hoi. hieu van nhan luc va thanh ((vai cua) or (thai cua)) tre*.