Perhaps you should try some spelling variations:
doanh dan » doanh ban, doanh van, doanh dao
thu nang » thu hang, thu bang, tho nang
thi nang » thi cong, ki nang, thi hanh
va doanh » van doanh, vay doanh, va danh
tu sach » thu sach, su sach, te sach
va cham » va chat, va tham
dan cua » dan ca, ban cua, dai cua
ve cham » ve chat, vu cham, ve chim
cua tre » cua te, cuu tre, cua triet
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 ((thu nang) or (thi nang)) xa hoi. hieu ((ve cham) OR (va cham)) xuc va doanh dan cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((thu nang) OR (thi nang)) xa hoi. hieu ((ve cham) OR (va cham)) xuc va doanh dan cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((thu nang) or (thi nang)) xa hoi. hieu ((ve cham) OR (va cham)) xuc va doanh dan cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ((thu nang) or (thi nang)) xa hoi. hieu ((ve cham) OR (va cham)) xuc va doanh dan cua tre*.