Perhaps you should try some spelling variations:
hanh trang » thanh trung, hanh trinh, minh trang
lieu tinh » trieu tinh, diep tinh, bien tinh
cua tong » cua cong, cua dong, cua nong
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan cao » toan ban, toan tap
ho lieu » so lieu, co lieu, ho kieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho lieu tinh - ((hanh trang) or (canh tranh)) cua tong ((cong dan) or (cong san)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - ((hanh trang) OR (canh tranh)) cua tong ((cong dan) OR (cong san)) toan cao.
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - ((hanh trang) or (canh tranh)) cua tong ((cong dan) or (cong san)) toan cao*.