Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh tranh » canh tranh, hanh trang, lanh tranh
hanh trinh » canh tranh, hanh chinh
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap
va dung » van dung, va duong, vat dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu tinh - ((hanh tranh) OR (hanh trinh)) va dung cong dan toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu tinh - ((hanh tranh) OR (hanh trinh)) va dung cong dan toan cao".
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - ((hanh tranh) OR (hanh trinh)) va dung cong dan toan cao*.