Perhaps you should try some spelling variations:
sach trien » sach tien, sach tren, sach thieu
trien nang » trien nong, trien mang, thien nang
cham xuc » cam xuc, chat xuc, cham soc
va doanh » van doanh, vay doanh, va danh
tu sach » thu sach, su sach, te sach
ban cua » ban quan
ban cuu » ban cau, ban muu, ban cung
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
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 trien nang xa hoi. ((hieu ve) or (lieu va)) cham xuc va doanh ((ban cuu) or (ban cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach trien nang xa hoi. ((hieu ve) OR (lieu va)) cham xuc va doanh ((ban cuu) OR (ban cua)) tre.
• Adding a wildcard symbol may retrieve word variants: tu sach trien nang xa hoi. ((hieu ve) or (lieu va)) cham xuc va doanh ((ban cuu) or (ban cua)) tre*.