Perhaps you should try some spelling variations:
nghien cac » nghiep cach, nghien cuu, nghiep cay
phan cung » phan cong, phan ung, phan xuong
manh hoc » anh hoc, manh ho, manh hon
cac dong » cac duong, cac cong, cac dang
dong hoc » dong co, dong luc
hoc phan » hoc dan, hoc pho
cung hoc » chung hoc, dung hoc, vung hoc
bai choi » tai chi, bai hoc, bi cho
tu manh » tu minh, tu hanh, vu manh
bai hoi » bai hoc, dai hoi, bi hoi
va luan » vay luan, van luan, va quan

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 hoc tap, nghien cac dong hoc phan cung hoc ((bai hoi) OR (bai choi)) va luan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu manh hoc tap, nghien cac dong hoc phan cung hoc ((bai hoi) OR (bai choi)) va luan van".
• Adding a wildcard symbol may retrieve word variants: tu manh hoc tap, nghien cac dong hoc phan cung hoc ((bai hoi) OR (bai choi)) va luan van*.