Perhaps you should try some spelling variations:
chua triet » cua triet, chua thiet, chua trieu
qua nhan » cua nhan, qua nhat, qua phan
nhan luu » nhan luc, nhan lupus, nhan luan
tu sach » thu sach, su sach, tu cach
te sach » toc sach
luu van » cuu van, luan van, luu hanh
van anh » van thanh, tuan anh, van minh
va chua » vua chua, ca chua, va chu
anh va » hanh va
x hoi » o hoi, x ho, 5 hoi

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 (te sach)) ky nang ((x hoi) OR (xa hoi)). hieu qua nhan luu van anh va chua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ky nang ((x hoi) OR (xa hoi)). hieu qua nhan luu van anh va chua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (te sach)) ky nang ((x hoi) OR (xa hoi)). hieu qua nhan luu van anh va chua triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) ky nang ((x hoi) OR (xa hoi)). hieu qua nhan luu van anh va chua triet*.