Perhaps you should try some spelling variations:
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
tinh hoc » sinh hoc, tin hoc, hinh hoc
cong hoa » dong hoa, dong hoc, hang hoa
hoa danh » hoa doanh, hoa dan, hop danh
danh hoa » thanh hoa, khanh hoa, nganh hoa
cau nhan » chau nhan, cu nhan, cam nhan
te tinh » tue tinh, tre tinh, ve tinh
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: te tinh hoc tap, nghien thu cong hoa danh hoa hoc xa hoi ((cau nhan) or (ca nhan)) van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te tinh hoc tap, nghien thu cong hoa danh hoa hoc xa hoi ((cau nhan) OR (ca nhan)) van.
• Adding a wildcard symbol may retrieve word variants: te tinh hoc tap, nghien thu cong hoa danh hoa hoc xa hoi ((cau nhan) or (ca nhan)) van*.