Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hanh trang » thanh trung, canh tranh, minh trang
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cao » toan ban, toan tap
chu han » chu van

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((ho manh) or (chu han)) - ((hanh trang) OR (hanh trinh)) cua nhung cong san toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((ho manh) OR (chu han)) - ((hanh trang) OR (hanh trinh)) cua nhung cong san toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((ho manh) or (chu han)) - ((hanh trang) OR (hanh trinh)) cua nhung cong san toan cao".
• Adding a wildcard symbol may retrieve word variants: theo ((ho manh) or (chu han)) - ((hanh trang) OR (hanh trinh)) cua nhung cong san toan cao*.