Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
cham luc » cham soc, nhan luc, cham cuu
danh van » dang van, dinh van, anh van
tu sach » thu sach, su sach, te sach
ly nang » ly hang, ly vang, ly quang
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
cua tre » cua te, cuu tre, cua triet
luc va » duc va, tuc va, loc va
x hoi » xa hoi, o hoi, x ho

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 ((ly nang) or (ky nang)) x hoi. hieu ve cham luc va ((danh van) OR (doanh van)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ly nang) OR (ky nang)) x hoi. hieu ve cham luc va ((danh van) OR (doanh van)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ly nang) or (ky nang)) x hoi. hieu ve cham luc va ((danh van) OR (doanh van)) cua tre*".