Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
nhung vuong » hung vuong, nhung huong, nhung tuong
canh doanh » hanh doanh, chinh doanh, kinh doanh
cua nhung » va nhung
vuong dan » huong dan, tuong dan, xuong dan
hoc kien » hoc vien, hoa kien, hoc lien
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc kien) OR (hoc hien)) sach - ((canh doanh) or (doanh doanh)) cua nhung vuong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc kien) OR (hoc hien)) sach - ((canh doanh) OR (doanh doanh)) cua nhung vuong dan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc kien) OR (hoc hien)) sach - ((canh doanh) or (doanh doanh)) cua nhung vuong dan toan cau".
• Adding a wildcard symbol may retrieve word variants: ((hoc kien) OR (hoc hien)) sach - ((canh doanh) or (doanh doanh)) cua nhung vuong dan toan cau*.