Perhaps you should try some spelling variations:
sach thien » sach thieu, sach tien, cach thien
thien nang » thien bang, thien dang, trien nang
doanh ban » doanh bat, doanh van, doanh nhan
va doanh » van doanh, vay doanh, va danh
vu sach » vu bach, su sach, vu khach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu van
hieu va » lieu va
ban cuu » ban cua, ban cau, ban muu
cuu tre » cua tre, cau tren, cau treo
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: vu sach thien nang xa hoi. ((((hieu ve) OR (hieu va))) or (hieu qua)) cam xuc va doanh ban cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach thien nang xa hoi. ((((hieu ve) OR (hieu va))) OR (hieu qua)) cam xuc va doanh ban cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach thien nang xa hoi. ((((hieu ve) OR (hieu va))) or (hieu qua)) cam xuc va doanh ban cuu tre".
• Adding a wildcard symbol may retrieve word variants: vu sach thien nang xa hoi. ((((hieu ve) OR (hieu va))) or (hieu qua)) cam xuc va doanh ban cuu tre*.