Perhaps you should try some spelling variations:
danh nhan » doanh nhan, thanh nhan, benh nhan
nhan luc » nang luc
dang xay » dang van, van xay
van cau » van hau, van chat, toan cau
va danh » va dinh, va dan, va hanh
van dau » van dao, phan dau
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
lang xa » lang ha, lang van
luc tre » duc tre, luy tre, duc tren
xuc va » duc va, tuc va, luc va

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 ty ((lang xa) or (dang xay)) hoi. hieu ((van cau) OR (van dau)) xuc va danh nhan luc tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((lang xa) OR (dang xay)) hoi. hieu ((van cau) OR (van dau)) xuc va danh nhan luc tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty ((lang xa) or (dang xay)) hoi. hieu ((van cau) OR (van dau)) xuc va danh nhan luc tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((lang xa) or (dang xay)) hoi. hieu ((van cau) OR (van dau)) xuc va danh nhan luc tre*.