Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trang, lanh tranh
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
chi lang » chi van, hoi lang, chi dan
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap
thi lan » thi hanh, thi nang, thi lien

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

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