Perhaps you should try some spelling variations:
nghien cua » nghien cuu, nghiep cua, nghiep vua
doanh khoa » toan khoa
thuat san » thuat toan, thuat lanh, thuat xay
co doanh » cho doanh, cao doanh, so doanh
khoa hoc » hoa hoc
cong co » dong co, cong cu, cong so
hoi cau » hoi chu, hoc cau, hoa cau
cau han » cau chan, cau phan, chu han
han van » phan van, nhan van, hanh van
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) or (thuat song)) hoc tap, nghien cua cong co doanh khoa hoc xa hoi cau han van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuat san) OR (thuat song)) hoc tap, nghien cua cong co doanh khoa hoc xa hoi cau han van.
• Adding a wildcard symbol may retrieve word variants: ((thuat san) or (thuat song)) hoc tap, nghien cua cong co doanh khoa hoc xa hoi cau han van*.