Perhaps you should try some spelling variations:
soc doanh » so doanh, hoa doanh, voi doanh
doanh hoa » doanh khoa, doanh hoan, danh hoa
toan phan » thanh phan, toan ban, hoa phan
sach hoc » cach hoc, sach hoi, mach hoc
cuu cong » thu cong, cac cong
thai van » thi van, thanh van, thai vung
van toan » van tuan, van tan, van thanh
tu sach » thu sach, su sach, te sach
ca thai » chat thai, hoa thai
hoc ca » hoc cao, hoc cua, hoc cac

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach hoc tap, nghien ((cuu cong) OR (cua cong)) soc doanh hoa hoc ca thai van toan phan~".
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghien ((cuu cong) OR (cua cong)) soc doanh hoa hoc ca thai van toan phan*.