Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
sach tru » sach truc, sach tu, sach tren
sach thu » sach thue, sach thieu, sach tham
va doanh » van doanh, vay doanh, va danh
nang xa » nang x, lang xa, nang ma
qua cao » qua cac, qua ca, qua cai
cao luc » bao luc, cao duc, cao suc
van cua » vang cua, ban cua, dan cua
luc va » duc va, tuc va, loc va
cua te » cua tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((sach tru) OR (sach thu)) nang xa hoi. hieu qua cao luc va doanh van cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((sach tru) OR (sach thu)) nang xa hoi. hieu qua cao luc va doanh van cua te".
• Adding a wildcard symbol may retrieve word variants: toc ((sach tru) OR (sach thu)) nang xa hoi. hieu qua cao luc va doanh van cua te*.