Perhaps you should try some spelling variations:
phan chong » phan cong, phan hong, phap chong
toc mach » toc sach, hoc mac, tim mach
mach hoc » cach hoc, dich hoc, anh hoc
cuu dong » cuu cong, cuu tong, cuu long
dong hoc » dong co, dong luc
hoc phan » hoc dan, hoc pho
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: toc mach hoc tap, nghien cuu dong hoc phan chong ((hoc xa) OR (hoc ma)) hoi va luan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc mach hoc tap, nghien cuu dong hoc phan chong ((hoc xa) OR (hoc ma)) hoi va luan van".
• Adding a wildcard symbol may retrieve word variants: toc mach hoc tap, nghien cuu dong hoc phan chong ((hoc xa) OR (hoc ma)) hoi va luan van*.