Perhaps you should try some spelling variations:
phan cung » phan cong, phan ung, phan xuong
toc sach » hoc sach, doc sach, thuoc sach
sach hoc » cach hoc, sach hoi, mach hoc
cuu long » cuu cong, cuu tong, cuu nang
cung hoc » chung hoc, dung hoc, vung hoc
van luan » van quan, van tuan, von luan
long co » dong co, cong co, lang co
va luan » vay luan, va quan, va luat
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: toc sach hoc tap, nghien cuu long co phan cung hoc xa hoi ((va luan) or (van luan)) van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach hoc tap, nghien cuu long co phan cung hoc xa hoi ((va luan) OR (van luan)) van.
• Adding a wildcard symbol may retrieve word variants: toc sach hoc tap, nghien cuu long co phan cung hoc xa hoi ((va luan) or (van luan)) van*.