Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hanh trang » thanh trung, canh tranh, minh trang
cong quang » luong quang, thong quang, duong quang
cua nhung » va nhung
chi danh » chi dan, chi anh, chi dinh
cong san » cong tac
toan cao » toan ban, toan tap
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 trang) OR (hanh trinh)) cua nhung ((cong quang) or (cong san)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi danh - ((hanh trang) OR (hanh trinh)) cua nhung ((cong quang) OR (cong san)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi danh - ((hanh trang) OR (hanh trinh)) cua nhung ((cong quang) or (cong san)) toan cao".
• Adding a wildcard symbol may retrieve word variants: doi chi danh - ((hanh trang) OR (hanh trinh)) cua nhung ((cong quang) or (cong san)) toan cao*.