Perhaps you should try some spelling variations:
phuong trinh » chuong trinh, cong trinh, huong tran
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh van » tran van, trinh van, thanh van
quang cao » quang nam
chi danh » chi dan, chi anh, chi dinh
van bang » van ban, van nang, von bang
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi danh - hanh tranh van bang phuong trinh ((quang cao) or (nang cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi danh - hanh tranh van bang phuong trinh ((quang cao) OR (nang cao)).
• Adding a wildcard symbol may retrieve word variants: doi chi danh - hanh tranh van bang phuong trinh ((quang cao) or (nang cao))*.