Perhaps you should try some spelling variations:
cuu thuong » cuu phuong, cua thuong, cuu tuong
cuu thong » cuu tong, cuu chong, cuu phong
toc sach » hoc sach, doc sach, thuoc sach
sach hoc » cach hoc, sach hoi, mach hoc
pho hong » pho thong, pho uong, pho dong
hong hoc » thong hoc, dong hoc, hong phuoc
phan van » pham van, thanh van, luan van
va phan » van phan, va phat, va phap
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 thong) OR (cuu thuong)) hoc pho hong hoc xa hoi va phan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach hoc tap, nghien ((cuu thong) OR (cuu thuong)) hoc pho hong hoc xa hoi va phan van".
• Adding a wildcard symbol may retrieve word variants: toc sach hoc tap, nghien ((cuu thong) OR (cuu thuong)) hoc pho hong hoc xa hoi va phan van*.