Perhaps you should try some spelling variations:
phuong doanh » phuong danh, phuong doan, phuong hoang
tranh tren » trinh tren, tran tren, tranh trong
tieu danh » dieu danh, tiep danh, thien danh
tren doan » tran doan, trien doanh, trang doan
hoan tap » toan tap, hoan tran, khoan tai
han tap » han tai, toan tap, nhan tai

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 danh - canh tranh tren doan phuong doanh ((hoan tap) or (han tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu danh - canh tranh tren doan phuong doanh ((hoan tap) OR (han tap)).
• Adding a wildcard symbol may retrieve word variants: theo tieu danh - canh tranh tren doan phuong doanh ((hoan tap) or (han tap))*.