Perhaps you should try some spelling variations:
soc doanh » so doanh, hoa doanh, voi doanh
doanh hoa » doanh khoa, doanh hoan, danh hoa
thu sach » tu sach, thuat sach, thuoc sach
sach hoc » cach hoc, sach hoi, mach hoc
cuu cong » cua cong, thu cong, cac cong
cong soc » cong so, cong suc, cong coc
van tuan » van ban, anh tuan
van quan » van ban
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.

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach hoc tap, nghien cuu cong soc doanh hoa hoc ca thai ((van tuan) OR (van quan)) phan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach hoc tap, nghien cuu cong soc doanh hoa hoc ca thai ((van tuan) OR (van quan)) phan".
• Adding a wildcard symbol may retrieve word variants: thu sach hoc tap, nghien cuu cong soc doanh hoa hoc ca thai ((van tuan) OR (van quan)) phan*.