Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
chat luc » chat xuc, chat lua, nhan luc
danh van » dang van, dinh van, anh van
tu sach » thu sach, te sach, tu cach
ve chat » va chat, van chat
hieu ve » hieu va, hieu van
ly nang » ky nang, ly hang, ly vang
su sach » so sach, vu sach
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) OR (su sach)) ly nang x hoi. hieu ve chat luc va ((danh van) or (doanh van)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ly nang x hoi. hieu ve chat luc va ((danh van) OR (doanh van)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (su sach)) ly nang x hoi. hieu ve chat luc va ((danh van) or (doanh van)) cua tre*".