Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
nghien cua » nghien cuu, nghiep vua, nghe cua
nghiep cua » nghiep vua, nghiep luan, nghien cuu
doanh khoa » toan khoa
coc doanh » cac doanh, hoa doanh, cho doanh
lanh hoc » anh hoc, danh hoc, thanh hoc
cong coc » cong cuoc, cong cac, cong co
khoa hoc » hoa hoc
cac pham » tac pham, cac ham, cac phan
hoc cac » hoc cao
hoc xa » hoc ma
xa hoc » xa hoi, va hoc, xa hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat lanh hoc tap, ((nghien cua) or (nghiep cua)) cong coc doanh khoa hoc xa hoc cac pham van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat lanh hoc tap, ((nghien cua) OR (nghiep cua)) cong coc doanh khoa hoc xa hoc cac pham van.
• Adding a wildcard symbol may retrieve word variants: thuat lanh hoc tap, ((nghien cua) or (nghiep cua)) cong coc doanh khoa hoc xa hoc cac pham van*.