Perhaps you should try some spelling variations:
nghien cua » nghien cuu, nghiep cua, nghiep vua
thuat san » thuat toan, thuat song, thuat lanh
doanh hoa » doanh khoa, doanh hoan, danh hoa
cap thanh » lap thanh, tap thanh, ban thanh
cac thanh » bac thanh, cach nhanh, ban thanh
co doanh » cho doanh, cao doanh, so doanh
san hoc » van hoc, dan hoc, san ho
cong co » dong co, cong cu, cong so
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat san hoc tap, nghien cua cong co doanh hoa hoc xa hoi ((cap thanh) OR (cac thanh)) van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat san hoc tap, nghien cua cong co doanh hoa hoc xa hoi ((cap thanh) OR (cac thanh)) van".
• Adding a wildcard symbol may retrieve word variants: thuat san hoc tap, nghien cua cong co doanh hoa hoc xa hoi ((cap thanh) OR (cac thanh)) van*.