Perhaps you should try some spelling variations:
dong phuong » duong phuong, dung phuong, dong huong
thien hach » thien thanh, hien hanh
dung chung » dung cong, dung ung, dung trung
hoc thien » hoc hien, hoc thieu, hoc thiet
hanh tran » hanh trang, thanh tran, hanh tram
danh toan » manh toan, anh toan, dan toan
tran van » luan van
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thien hach - hanh tran van ((dong phuong) or (dung chung)) danh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - hanh tran van ((dong phuong) OR (dung chung)) danh toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - hanh tran van ((dong phuong) or (dung chung)) danh toan cao*.