Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
nhan luc » nang luc
su sach » so sach, vu sach
hai cua » thai cua, dai cua, hoi cua
lai cua » dai cua, lai chau, thai cua
ve nhan » ve nha, de nhan, va nhan
hieu ve » hieu va, hieu van
so sanh » do sanh
ang xa » lang xa, mang xa, dang xay
luc va » duc va, tuc va, loc va
ty ang » ty xang, ty hang, ty anh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (so sanh)) ty ang xa hoi. hieu ve nhan luc va thanh ((lai cua) OR (hai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sanh)) ty ang xa hoi. hieu ve nhan luc va thanh ((lai cua) OR (hai cua)) te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (so sanh)) ty ang xa hoi. hieu ve nhan luc va thanh ((lai cua) OR (hai cua)) te*".