Perhaps you should try some spelling variations:
phuong danh » phuong anh, phuong dinh, phuong hanh
thieu xanh » chieu xanh, hieu manh, thien anh
phuong dan » phuong doan, huong dan, phuong lan
tranh cua » doanh cua, manh cua
cua dung » cua dang, cua dong, qua dung
toan tai » doanh tai, toan ban, toan cao
toan tap » toan ban

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: toc thieu xanh - canh tranh cua dung ((phuong dan) OR (phuong danh)) ((toan tai) OR (toan tap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc thieu xanh - canh tranh cua dung ((phuong dan) OR (phuong danh)) ((toan tai) or (toan tap))~".
• Adding a wildcard symbol may retrieve word variants: toc thieu xanh - canh tranh cua dung ((phuong dan) OR (phuong danh)) ((toan tai) or (toan tap))*.