Perhaps you should try some spelling variations:
dong phuong » duong phuong, dong huong, dong thuong
thien thanh » tien thanh, thi thanh, hien hanh
dung phuong » dung thuong, bang phuong, dung chung
thien hach » hien hanh
hanh tran » hanh trang, thanh tran, hanh tram
dinh toan » tinh toan, hinh toan, minh toan
tran van » luan van
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((thien hach) OR (thien thanh)) - hanh tran van ((dong phuong) or (dung phuong)) dinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((thien hach) OR (thien thanh)) - hanh tran van ((dong phuong) OR (dung phuong)) dinh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((thien hach) OR (thien thanh)) - hanh tran van ((dong phuong) or (dung phuong)) dinh toan ban".
• Adding a wildcard symbol may retrieve word variants: toc ((thien hach) OR (thien thanh)) - hanh tran van ((dong phuong) or (dung phuong)) dinh toan ban*.