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
hanh tang » hanh trang, anh tang, hanh mang
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap
chu van » cuu van, chu han
tang va » trang va, tang van, thang va

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((((thuc hanh) OR (chu van))) OR (chieu xanh)) - hanh tang va nhung phuong dan toan cau~.
• Adding a wildcard symbol may retrieve word variants: theo ((((thuc hanh) or (chu van))) or (chieu xanh)) - hanh tang va nhung phuong dan toan cau*.