Perhaps you should try some spelling variations:
phuong tran » huong tran, phuong trinh, phuong thao
doi tuong » moi truong, doi song
tuong hoc » truong hoc, tuong ho, tuong khoa
tran quen » tran quang, tran quynh, tran quoc
quen vang » que van, que lang, quen hanh
con duong » van duong
duong hoc » dong hoc, dung hoc, duong hoi
thi quan » thi xuan, tri quan, thi luan
quan van » luan van, quan va, quan luan
hoc mot » hoc moi
hoc mo » hoc moi, hoc mon, hoc ma
phung » nhung, chung, phong

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( phung thi quan van. doi tuong hoc mot ) or ( phuong tran quen vang. con duong hoc mo ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( phung thi quan van. doi tuong hoc mot ) OR ( phuong tran quen vang. con duong hoc mo )).
• Adding a wildcard symbol may retrieve word variants: (( phung thi quan van. doi tuong hoc mot ) or ( phuong tran quen vang. con duong hoc mo ))*.