Perhaps you should try some spelling variations:
phan chung » phan cung, phan hung, phan thuong
thanh toan » thanh san, tinh toan
chung hoc » trung hoc, dung hoc, hung hoa
thanh hoa » thanh pho
cach hoc » cach thuc, cach thoi, dich hoc
goc phan » ngoc phan, hoc phan, gop phan
tu cach » tu cac
cuu mot » cua mot, cuu mo, huu mot
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: tu cach hoc tap, nghien cuu mot goc phan chung hoc ma hoi ((thanh toan) or (thanh hoa)) dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cach hoc tap, nghien cuu mot goc phan chung hoc ma hoi ((thanh toan) OR (thanh hoa)) dan.
• Adding a wildcard symbol may retrieve word variants: tu cach hoc tap, nghien cuu mot goc phan chung hoc ma hoi ((thanh toan) or (thanh hoa)) dan*.