Perhaps you should try some spelling variations:
doanh ban » doanh bat, doanh van, doanh nhan
sach thi » sach thu, sach tai, sach thieu
thi nang » thi cong, ki nang, thi hanh
va doanh » van doanh, vay doanh, va danh
hau treo » cau treo, cau theo, dau tren
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
ve pham » vi pham, v pham, ve phat
ve phan » va phan, ke phan, ve phat
ban hau » van hau, ban dau, ban ham
duy va » duy vat, duy van, day 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 thi nang xa hoi. hieu ((ve pham) or (ve phan)) duy va doanh ban hau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach thi nang xa hoi. hieu ((ve pham) OR (ve phan)) duy va doanh ban hau treo.
• Adding a wildcard symbol may retrieve word variants: tu sach thi nang xa hoi. hieu ((ve pham) or (ve phan)) duy va doanh ban hau treo*.