Perhaps you should try some spelling variations:
nghien cua » nghien cuu, nghiep cua, nghiep vua
manh huong » anh huong, manh hung, manh cuong
thanh toan » thanh hoa, thanh san, tinh toan
hoc nhanh » hoc nganh, hoc phan
huong tap » cuong tap, huong tac, huong tam
chong hoc » chong doc, thong hoc, thuong hoc
chung hoc » trung hoc, dung hoc, hung hoa
van thanh » ban thanh, van tuan
cua dong » chua dong, cua cong, cua dang
dong hoc » dong co, dong luc
hoi van » hoi va, hoi dan, hai van
tu manh » tu minh, tu hanh, vu manh

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu manh huong tap, nghien cua dong hoc nhanh ((chong hoc) OR (chung hoc)) xa hoi van thanh toan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu manh huong tap, nghien cua dong hoc nhanh ((chong hoc) OR (chung hoc)) xa hoi van thanh toan*".