Perhaps you should try some spelling variations:
phuong doan » phuong loan, phuong hoang, huong dan
dung phuong » dung thuong, bang phuong, dung chung
tieu xanh » tieu danh, chieu xanh, dieu hanh
doan toan » dan toan, doan tuan, doanh hoan
toan xay » toan xac, toan day, toan xa
toan may » toan ban, toan tap, toan tai
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: theo tieu xanh - thanh ((toan xay) OR (toan may)) dung phuong doan toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - thanh ((toan xay) OR (toan may)) dung phuong doan toan cao".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - thanh ((toan xay) OR (toan may)) dung phuong doan toan cao*.