Perhaps you should try some spelling variations:
doanh ban » doanh bat, doanh van, doanh nhan
thu nang » thi nang, thu hang, tho nang
thu bang » thu ban, thu hang, chu bang
pham duy » pham duc
va doanh » van doanh, vay doanh, va danh
hau treo » cau treo, cau theo, dau tren
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
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 ((thu nang) OR (thu bang)) xa hoi. hieu ve pham duy va doanh ban hau treo~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((thu nang) OR (thu bang)) xa hoi. hieu ve pham duy va doanh ban hau treo".
• Adding a wildcard symbol may retrieve word variants: tu sach ((thu nang) OR (thu bang)) xa hoi. hieu ve pham duy va doanh ban hau treo*.