Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
chieu xanh » chieu sach, chieu sang, chieu tinh
phuong dan » phuong danh, phuong doan, huong dan
tran van » luan van
tranh va » tranh van, trang va, trinh va
dan toan » van toan, dan than, manh toan
toan cau » 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: ho ((chieu xanh) or (diep tinh)) - hanh ((tran van) or (tranh va)) nhung phuong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (diep tinh)) - hanh ((tran van) OR (tranh va)) nhung phuong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (diep tinh)) - hanh ((tran van) or (tranh va)) nhung phuong dan toan cau*.