Perhaps you should try some spelling variations:
thanh thong » thanh thuong, thanh hong, thanh thang
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
san thanh » ban thanh, van thanh, son thanh
thong hoc » thuong hoc, tuong hoc, thong hoa
cong san » cong tac
phan van » pham van, thanh van, luan van
te sach » toc sach
tu cach » tu cac
va phan » van phan, va phat, va phap
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) or (tu cach)) hoc tap, nghien thu cong san thanh thong hoc ma hoi va phan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (tu cach)) hoc tap, nghien thu cong san thanh thong hoc ma hoi va phan van.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (tu cach)) hoc tap, nghien thu cong san thanh thong hoc ma hoi va phan van*.